@ ProgramNode (location: (0...916))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...916))
    └── body: (length: 78)
        ├── @ HashNode (location: (0...38))
        │   ├── opening_loc: (0...1) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (2...21))
        │   │   │   ├── key:
        │   │   │   │   @ StringNode (location: (2...7))
        │   │   │   │   ├── opening_loc: (2...3) = "\""
        │   │   │   │   ├── content_loc: (3...6) = "foo"
        │   │   │   │   ├── closing_loc: (6...7) = "\""
        │   │   │   │   └── unescaped: "foo"
        │   │   │   ├── value:
        │   │   │   │   @ InterpolatedStringNode (location: (11...21))
        │   │   │   │   ├── opening_loc: (11...21) = "<<-HEREDOC"
        │   │   │   │   ├── parts: (length: 3)
        │   │   │   │   │   ├── @ StringNode (location: (39...41))
        │   │   │   │   │   │   ├── opening_loc: ∅
        │   │   │   │   │   │   ├── content_loc: (39...41) = "  "
        │   │   │   │   │   │   ├── closing_loc: ∅
        │   │   │   │   │   │   └── unescaped: "  "
        │   │   │   │   │   ├── @ EmbeddedStatementsNode (location: (41...44))
        │   │   │   │   │   │   ├── opening_loc: (41...43) = "\#{"
        │   │   │   │   │   │   ├── statements: ∅
        │   │   │   │   │   │   └── closing_loc: (43...44) = "}"
        │   │   │   │   │   └── @ StringNode (location: (44...45))
        │   │   │   │   │       ├── opening_loc: ∅
        │   │   │   │   │       ├── content_loc: (44...45) = "\n"
        │   │   │   │   │       ├── closing_loc: ∅
        │   │   │   │   │       └── unescaped: "\n"
        │   │   │   │   └── closing_loc: (45...53) = "HEREDOC\n"
        │   │   │   └── operator_loc: (8...10) = "=>"
        │   │   └── @ AssocNode (location: (23...36))
        │   │       ├── key:
        │   │       │   @ StringNode (location: (23...28))
        │   │       │   ├── opening_loc: (23...24) = "\""
        │   │       │   ├── content_loc: (24...27) = "bar"
        │   │       │   ├── closing_loc: (27...28) = "\""
        │   │       │   └── unescaped: "bar"
        │   │       ├── value:
        │   │       │   @ SymbolNode (location: (32...36))
        │   │       │   ├── opening_loc: (32...33) = ":"
        │   │       │   ├── value_loc: (33...36) = "baz"
        │   │       │   ├── closing_loc: ∅
        │   │       │   └── unescaped: "baz"
        │   │       └── operator_loc: (29...31) = "=>"
        │   └── closing_loc: (37...38) = "}"
        ├── @ HashNode (location: (53...84))
        │   ├── opening_loc: (53...54) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (55...67))
        │   │   │   ├── key:
        │   │   │   │   @ StringNode (location: (55...60))
        │   │   │   │   ├── opening_loc: (55...56) = "\""
        │   │   │   │   ├── content_loc: (56...59) = "foo"
        │   │   │   │   ├── closing_loc: (59...60) = "\""
        │   │   │   │   └── unescaped: "foo"
        │   │   │   ├── value:
        │   │   │   │   @ StringNode (location: (64...67))
        │   │   │   │   ├── opening_loc: (64...66) = "%("
        │   │   │   │   ├── content_loc: (66...66) = ""
        │   │   │   │   ├── closing_loc: (66...67) = ")"
        │   │   │   │   └── unescaped: ""
        │   │   │   └── operator_loc: (61...63) = "=>"
        │   │   └── @ AssocNode (location: (69...82))
        │   │       ├── key:
        │   │       │   @ StringNode (location: (69...74))
        │   │       │   ├── opening_loc: (69...70) = "\""
        │   │       │   ├── content_loc: (70...73) = "bar"
        │   │       │   ├── closing_loc: (73...74) = "\""
        │   │       │   └── unescaped: "bar"
        │   │       ├── value:
        │   │       │   @ SymbolNode (location: (78...82))
        │   │       │   ├── opening_loc: (78...79) = ":"
        │   │       │   ├── value_loc: (79...82) = "baz"
        │   │       │   ├── closing_loc: ∅
        │   │       │   └── unescaped: "baz"
        │   │       └── operator_loc: (75...77) = "=>"
        │   └── closing_loc: (83...84) = "}"
        ├── @ ArrayNode (location: (85...97))
        │   ├── elements: (length: 2)
        │   │   ├── @ StringNode (location: (86...91))
        │   │   │   ├── opening_loc: (86...87) = "\""
        │   │   │   ├── content_loc: (87...90) = "foo"
        │   │   │   ├── closing_loc: (90...91) = "\""
        │   │   │   └── unescaped: "foo"
        │   │   └── @ StringNode (location: (93...96))
        │   │       ├── opening_loc: (93...95) = "%("
        │   │       ├── content_loc: (95...95) = ""
        │   │       ├── closing_loc: (95...96) = ")"
        │   │       └── unescaped: ""
        │   ├── opening_loc: (85...86) = "["
        │   └── closing_loc: (96...97) = "]"
        ├── @ CallNode (location: (98...113))
        │   ├── receiver:
        │   │   @ CallNode (location: (98...111))
        │   │   ├── receiver: ∅
        │   │   ├── call_operator_loc: ∅
        │   │   ├── message_loc: (98...99) = "a"
        │   │   ├── opening_loc: (99...100) = "("
        │   │   ├── arguments:
        │   │   │   @ ArgumentsNode (location: (100...110))
        │   │   │   └── arguments: (length: 1)
        │   │   │       └── @ InterpolatedStringNode (location: (100...110))
        │   │   │           ├── opening_loc: (100...110) = "<<-HEREDOC"
        │   │   │           ├── parts: (length: 3)
        │   │   │           │   ├── @ StringNode (location: (114...116))
        │   │   │           │   │   ├── opening_loc: ∅
        │   │   │           │   │   ├── content_loc: (114...116) = "  "
        │   │   │           │   │   ├── closing_loc: ∅
        │   │   │           │   │   └── unescaped: "  "
        │   │   │           │   ├── @ EmbeddedStatementsNode (location: (116...119))
        │   │   │           │   │   ├── opening_loc: (116...118) = "\#{"
        │   │   │           │   │   ├── statements: ∅
        │   │   │           │   │   └── closing_loc: (118...119) = "}"
        │   │   │           │   └── @ StringNode (location: (119...120))
        │   │   │           │       ├── opening_loc: ∅
        │   │   │           │       ├── content_loc: (119...120) = "\n"
        │   │   │           │       ├── closing_loc: ∅
        │   │   │           │       └── unescaped: "\n"
        │   │   │           └── closing_loc: (120...128) = "HEREDOC\n"
        │   │   ├── closing_loc: (110...111) = ")"
        │   │   ├── block: ∅
        │   │   ├── flags: ∅
        │   │   └── name: "a"
        │   ├── call_operator_loc: (111...112) = "."
        │   ├── message_loc: (112...113) = "a"
        │   ├── opening_loc: ∅
        │   ├── arguments: ∅
        │   ├── closing_loc: ∅
        │   ├── block: ∅
        │   ├── flags: ∅
        │   └── name: "a"
        ├── @ CallNode (location: (128...136))
        │   ├── receiver:
        │   │   @ CallNode (location: (128...134))
        │   │   ├── receiver: ∅
        │   │   ├── call_operator_loc: ∅
        │   │   ├── message_loc: (128...129) = "a"
        │   │   ├── opening_loc: (129...130) = "("
        │   │   ├── arguments:
        │   │   │   @ ArgumentsNode (location: (130...133))
        │   │   │   └── arguments: (length: 1)
        │   │   │       └── @ StringNode (location: (130...133))
        │   │   │           ├── opening_loc: (130...132) = "%("
        │   │   │           ├── content_loc: (132...132) = ""
        │   │   │           ├── closing_loc: (132...133) = ")"
        │   │   │           └── unescaped: ""
        │   │   ├── closing_loc: (133...134) = ")"
        │   │   ├── block: ∅
        │   │   ├── flags: ∅
        │   │   └── name: "a"
        │   ├── call_operator_loc: (134...135) = "."
        │   ├── message_loc: (135...136) = "a"
        │   ├── opening_loc: ∅
        │   ├── arguments: ∅
        │   ├── closing_loc: ∅
        │   ├── block: ∅
        │   ├── flags: ∅
        │   └── name: "a"
        ├── @ HashNode (location: (137...167))
        │   ├── opening_loc: (137...138) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (139...158))
        │   │   │   ├── key:
        │   │   │   │   @ StringNode (location: (139...144))
        │   │   │   │   ├── opening_loc: (139...140) = "\""
        │   │   │   │   ├── content_loc: (140...143) = "foo"
        │   │   │   │   ├── closing_loc: (143...144) = "\""
        │   │   │   │   └── unescaped: "foo"
        │   │   │   ├── value:
        │   │   │   │   @ InterpolatedStringNode (location: (148...158))
        │   │   │   │   ├── opening_loc: (148...158) = "<<-HEREDOC"
        │   │   │   │   ├── parts: (length: 3)
        │   │   │   │   │   ├── @ StringNode (location: (168...170))
        │   │   │   │   │   │   ├── opening_loc: ∅
        │   │   │   │   │   │   ├── content_loc: (168...170) = "  "
        │   │   │   │   │   │   ├── closing_loc: ∅
        │   │   │   │   │   │   └── unescaped: "  "
        │   │   │   │   │   ├── @ EmbeddedStatementsNode (location: (170...173))
        │   │   │   │   │   │   ├── opening_loc: (170...172) = "\#{"
        │   │   │   │   │   │   ├── statements: ∅
        │   │   │   │   │   │   └── closing_loc: (172...173) = "}"
        │   │   │   │   │   └── @ StringNode (location: (173...174))
        │   │   │   │   │       ├── opening_loc: ∅
        │   │   │   │   │       ├── content_loc: (173...174) = "\n"
        │   │   │   │   │       ├── closing_loc: ∅
        │   │   │   │   │       └── unescaped: "\n"
        │   │   │   │   └── closing_loc: (174...182) = "HEREDOC\n"
        │   │   │   └── operator_loc: (145...147) = "=>"
        │   │   └── @ AssocSplatNode (location: (160...165))
        │   │       ├── value:
        │   │       │   @ CallNode (location: (162...165))
        │   │       │   ├── receiver: ∅
        │   │       │   ├── call_operator_loc: ∅
        │   │       │   ├── message_loc: (162...165) = "baz"
        │   │       │   ├── opening_loc: ∅
        │   │       │   ├── arguments: ∅
        │   │       │   ├── closing_loc: ∅
        │   │       │   ├── block: ∅
        │   │       │   ├── flags: variable_call
        │   │       │   └── name: "baz"
        │   │       └── operator_loc: (160...162) = "**"
        │   └── closing_loc: (166...167) = "}"
        ├── @ HashNode (location: (182...205))
        │   ├── opening_loc: (182...183) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (184...196))
        │   │   │   ├── key:
        │   │   │   │   @ StringNode (location: (184...189))
        │   │   │   │   ├── opening_loc: (184...185) = "\""
        │   │   │   │   ├── content_loc: (185...188) = "foo"
        │   │   │   │   ├── closing_loc: (188...189) = "\""
        │   │   │   │   └── unescaped: "foo"
        │   │   │   ├── value:
        │   │   │   │   @ StringNode (location: (193...196))
        │   │   │   │   ├── opening_loc: (193...195) = "%("
        │   │   │   │   ├── content_loc: (195...195) = ""
        │   │   │   │   ├── closing_loc: (195...196) = ")"
        │   │   │   │   └── unescaped: ""
        │   │   │   └── operator_loc: (190...192) = "=>"
        │   │   └── @ AssocSplatNode (location: (198...203))
        │   │       ├── value:
        │   │       │   @ CallNode (location: (200...203))
        │   │       │   ├── receiver: ∅
        │   │       │   ├── call_operator_loc: ∅
        │   │       │   ├── message_loc: (200...203) = "baz"
        │   │       │   ├── opening_loc: ∅
        │   │       │   ├── arguments: ∅
        │   │       │   ├── closing_loc: ∅
        │   │       │   ├── block: ∅
        │   │       │   ├── flags: variable_call
        │   │       │   └── name: "baz"
        │   │       └── operator_loc: (198...200) = "**"
        │   └── closing_loc: (204...205) = "}"
        ├── @ InterpolatedStringNode (location: (206...220))
        │   ├── opening_loc: (206...207) = "\""
        │   ├── parts: (length: 5)
        │   │   ├── @ EmbeddedVariableNode (location: (207...210))
        │   │   │   ├── operator_loc: (207...208) = "#"
        │   │   │   └── variable:
        │   │   │       @ InstanceVariableReadNode (location: (208...210))
        │   │   │       └── name: :@a
        │   │   ├── @ StringNode (location: (210...211))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (210...211) = " "
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: " "
        │   │   ├── @ EmbeddedVariableNode (location: (211...215))
        │   │   │   ├── operator_loc: (211...212) = "#"
        │   │   │   └── variable:
        │   │   │       @ ClassVariableReadNode (location: (212...215))
        │   │   │       └── name: :@@a
        │   │   ├── @ StringNode (location: (215...216))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (215...216) = " "
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: " "
        │   │   └── @ EmbeddedVariableNode (location: (216...219))
        │   │       ├── operator_loc: (216...217) = "#"
        │   │       └── variable:
        │   │           @ GlobalVariableReadNode (location: (217...219))
        │   │           └── name: :$a
        │   └── closing_loc: (219...220) = "\""
        ├── @ IntegerNode (location: (221...222))
        │   └── flags: decimal
        ├── @ CallNode (location: (223...226))
        │   ├── receiver:
        │   │   @ IntegerNode (location: (224...226))
        │   │   └── flags: decimal
        │   ├── call_operator_loc: ∅
        │   ├── message_loc: (223...224) = "+"
        │   ├── opening_loc: ∅
        │   ├── arguments: ∅
        │   ├── closing_loc: ∅
        │   ├── block: ∅
        │   ├── flags: ∅
        │   └── name: "+@"
        ├── @ IntegerNode (location: (227...228))
        │   └── flags: decimal
        ├── @ IntegerNode (location: (229...230))
        │   └── flags: decimal
        ├── @ RationalNode (location: (231...233))
        │   └── numeric:
        │       @ IntegerNode (location: (231...232))
        │       └── flags: decimal
        ├── @ RationalNode (location: (234...238))
        │   └── numeric:
        │       @ FloatNode (location: (234...237))
        ├── @ RationalNode (location: (239...243))
        │   └── numeric:
        │       @ FloatNode (location: (239...242))
        ├── @ ImaginaryNode (location: (244...246))
        │   └── numeric:
        │       @ IntegerNode (location: (244...245))
        │       └── flags: decimal
        ├── @ ImaginaryNode (location: (247...250))
        │   └── numeric:
        │       @ IntegerNode (location: (247...249))
        │       └── flags: decimal
        ├── @ ImaginaryNode (location: (251...255))
        │   └── numeric:
        │       @ FloatNode (location: (251...254))
        ├── @ ImaginaryNode (location: (256...261))
        │   └── numeric:
        │       @ FloatNode (location: (256...260))
        ├── @ ImaginaryNode (location: (262...294))
        │   └── numeric:
        │       @ IntegerNode (location: (262...293))
        │       └── flags: decimal
        ├── @ ImaginaryNode (location: (295...298))
        │   └── numeric:
        │       @ RationalNode (location: (295...297))
        │       └── numeric:
        │           @ IntegerNode (location: (295...296))
        │           └── flags: decimal
        ├── @ StringConcatNode (location: (299...310))
        │   ├── left:
        │   │   @ StringNode (location: (299...304))
        │   │   ├── opening_loc: (299...300) = "\""
        │   │   ├── content_loc: (300...303) = "foo"
        │   │   ├── closing_loc: (303...304) = "\""
        │   │   └── unescaped: "foo"
        │   └── right:
        │       @ StringNode (location: (305...310))
        │       ├── opening_loc: (305...306) = "\""
        │       ├── content_loc: (306...309) = "bar"
        │       ├── closing_loc: (309...310) = "\""
        │       └── unescaped: "bar"
        ├── @ InterpolatedStringNode (location: (311...326))
        │   ├── opening_loc: (311...312) = "\""
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (312...319))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (312...319) = "foobar "
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foobar "
        │   │   └── @ EmbeddedStatementsNode (location: (319...325))
        │   │       ├── opening_loc: (319...321) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (321...324))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ CallNode (location: (321...324))
        │   │       │           ├── receiver: ∅
        │   │       │           ├── call_operator_loc: ∅
        │   │       │           ├── message_loc: (321...324) = "baz"
        │   │       │           ├── opening_loc: ∅
        │   │       │           ├── arguments: ∅
        │   │       │           ├── closing_loc: ∅
        │   │       │           ├── block: ∅
        │   │       │           ├── flags: variable_call
        │   │       │           └── name: "baz"
        │   │       └── closing_loc: (324...325) = "}"
        │   └── closing_loc: (325...326) = "\""
        ├── @ InterpolatedStringNode (location: (327...339))
        │   ├── opening_loc: (327...328) = "\""
        │   ├── parts: (length: 3)
        │   │   ├── @ StringNode (location: (328...331))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (328...331) = "foo"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foo"
        │   │   ├── @ EmbeddedStatementsNode (location: (331...335))
        │   │   │   ├── opening_loc: (331...333) = "\#{"
        │   │   │   ├── statements:
        │   │   │   │   @ StatementsNode (location: (333...334))
        │   │   │   │   └── body: (length: 1)
        │   │   │   │       └── @ IntegerNode (location: (333...334))
        │   │   │   │           └── flags: decimal
        │   │   │   └── closing_loc: (334...335) = "}"
        │   │   └── @ StringNode (location: (335...338))
        │   │       ├── opening_loc: ∅
        │   │       ├── content_loc: (335...338) = "bar"
        │   │       ├── closing_loc: ∅
        │   │       └── unescaped: "bar"
        │   └── closing_loc: (338...339) = "\""
        ├── @ InterpolatedStringNode (location: (340...349))
        │   ├── opening_loc: (340...341) = "\""
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (341...345))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (341...345) = "\\\\\\\\"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "\\\\"
        │   │   └── @ EmbeddedStatementsNode (location: (345...348))
        │   │       ├── opening_loc: (345...347) = "\#{"
        │   │       ├── statements: ∅
        │   │       └── closing_loc: (347...348) = "}"
        │   └── closing_loc: (348...349) = "\""
        ├── @ InterpolatedStringNode (location: (350...359))
        │   ├── opening_loc: (350...351) = "\""
        │   ├── parts: (length: 2)
        │   │   ├── @ EmbeddedStatementsNode (location: (351...354))
        │   │   │   ├── opening_loc: (351...353) = "\#{"
        │   │   │   ├── statements: ∅
        │   │   │   └── closing_loc: (353...354) = "}"
        │   │   └── @ StringNode (location: (354...358))
        │   │       ├── opening_loc: ∅
        │   │       ├── content_loc: (354...358) = "\\\#{}"
        │   │       ├── closing_loc: ∅
        │   │       └── unescaped: "\#{}"
        │   └── closing_loc: (358...359) = "\""
        ├── @ InterpolatedStringNode (location: (360...369))
        │   ├── opening_loc: (360...361) = "\""
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (361...365))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (361...365) = "\\\#{}"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "\#{}"
        │   │   └── @ EmbeddedStatementsNode (location: (365...368))
        │   │       ├── opening_loc: (365...367) = "\#{"
        │   │       ├── statements: ∅
        │   │       └── closing_loc: (367...368) = "}"
        │   └── closing_loc: (368...369) = "\""
        ├── @ StringNode (location: (370...385))
        │   ├── opening_loc: (370...371) = "\""
        │   ├── content_loc: (371...384) = "foo\\\\\\\#{@bar}"
        │   ├── closing_loc: (384...385) = "\""
        │   └── unescaped: "foo\\\#{@bar}"
        ├── @ StringNode (location: (386...390))
        │   ├── opening_loc: (386...387) = "\""
        │   ├── content_loc: (387...389) = "\\\""
        │   ├── closing_loc: (389...390) = "\""
        │   └── unescaped: "\""
        ├── @ StringNode (location: (391...400))
        │   ├── opening_loc: (391...392) = "\""
        │   ├── content_loc: (392...399) = "foo bar"
        │   ├── closing_loc: (399...400) = "\""
        │   └── unescaped: "foo bar"
        ├── @ StringNode (location: (401...411))
        │   ├── opening_loc: (401...402) = "\""
        │   ├── content_loc: (402...410) = "foo\\nbar"
        │   ├── closing_loc: (410...411) = "\""
        │   └── unescaped: "foo\nbar"
        ├── @ XStringNode (location: (412...417))
        │   ├── opening_loc: (412...413) = "`"
        │   ├── content_loc: (413...416) = "foo"
        │   ├── closing_loc: (416...417) = "`"
        │   └── unescaped: "foo"
        ├── @ InterpolatedXStringNode (location: (418...430))
        │   ├── opening_loc: (418...419) = "`"
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (419...422))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (419...422) = "foo"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foo"
        │   │   └── @ EmbeddedStatementsNode (location: (422...429))
        │   │       ├── opening_loc: (422...424) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (424...428))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ InstanceVariableReadNode (location: (424...428))
        │   │       │           └── name: :@bar
        │   │       └── closing_loc: (428...429) = "}"
        │   └── closing_loc: (429...430) = "`"
        ├── @ XStringNode (location: (431...434))
        │   ├── opening_loc: (431...432) = "`"
        │   ├── content_loc: (432...433) = ")"
        │   ├── closing_loc: (433...434) = "`"
        │   └── unescaped: ")"
        ├── @ XStringNode (location: (435...439))
        │   ├── opening_loc: (435...436) = "`"
        │   ├── content_loc: (436...438) = "\\`"
        │   ├── closing_loc: (438...439) = "`"
        │   └── unescaped: "`"
        ├── @ XStringNode (location: (440...443))
        │   ├── opening_loc: (440...441) = "`"
        │   ├── content_loc: (441...442) = "\""
        │   ├── closing_loc: (442...443) = "`"
        │   └── unescaped: "\""
        ├── @ SymbolNode (location: (444...448))
        │   ├── opening_loc: (444...445) = ":"
        │   ├── value_loc: (445...448) = "foo"
        │   ├── closing_loc: ∅
        │   └── unescaped: "foo"
        ├── @ SymbolNode (location: (449...455))
        │   ├── opening_loc: (449...451) = ":\""
        │   ├── value_loc: (451...454) = "A B"
        │   ├── closing_loc: (454...455) = "\""
        │   └── unescaped: "A B"
        ├── @ SymbolNode (location: (456...460))
        │   ├── opening_loc: (456...457) = ":"
        │   ├── value_loc: (457...460) = "foo"
        │   ├── closing_loc: ∅
        │   └── unescaped: "foo"
        ├── @ SymbolNode (location: (461...467))
        │   ├── opening_loc: (461...463) = ":\""
        │   ├── value_loc: (463...466) = "A B"
        │   ├── closing_loc: (466...467) = "\""
        │   └── unescaped: "A B"
        ├── @ SymbolNode (location: (468...475))
        │   ├── opening_loc: (468...470) = ":\""
        │   ├── value_loc: (470...474) = "A\\\"B"
        │   ├── closing_loc: (474...475) = "\""
        │   └── unescaped: "A\"B"
        ├── @ SymbolNode (location: (476...479))
        │   ├── opening_loc: (476...478) = ":\""
        │   ├── value_loc: (0...0) = ""
        │   ├── closing_loc: (478...479) = "\""
        │   └── unescaped: ""
        ├── @ RegularExpressionNode (location: (480...485))
        │   ├── opening_loc: (480...481) = "/"
        │   ├── content_loc: (481...484) = "foo"
        │   ├── closing_loc: (484...485) = "/"
        │   ├── unescaped: "foo"
        │   └── flags: ∅
        ├── @ RegularExpressionNode (location: (486...514))
        │   ├── opening_loc: (486...487) = "/"
        │   ├── content_loc: (487...513) = "[^-+',.\\/:@[:alnum:]\\[\\]]+"
        │   ├── closing_loc: (513...514) = "/"
        │   ├── unescaped: "[^-+',./:@[:alnum:][]]+"
        │   └── flags: ∅
        ├── @ InterpolatedRegularExpressionNode (location: (515...527))
        │   ├── opening_loc: (515...516) = "/"
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (516...519))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (516...519) = "foo"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foo"
        │   │   └── @ EmbeddedStatementsNode (location: (519...526))
        │   │       ├── opening_loc: (519...521) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (521...525))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ InstanceVariableReadNode (location: (521...525))
        │   │       │           └── name: :@bar
        │   │       └── closing_loc: (525...526) = "}"
        │   ├── closing_loc: (526...527) = "/"
        │   └── flags: ∅
        ├── @ InterpolatedRegularExpressionNode (location: (528...543))
        │   ├── opening_loc: (528...529) = "/"
        │   ├── parts: (length: 2)
        │   │   ├── @ StringNode (location: (529...532))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (529...532) = "foo"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foo"
        │   │   └── @ EmbeddedStatementsNode (location: (532...539))
        │   │       ├── opening_loc: (532...534) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (534...538))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ InstanceVariableReadNode (location: (534...538))
        │   │       │           └── name: :@bar
        │   │       └── closing_loc: (538...539) = "}"
        │   ├── closing_loc: (539...543) = "/imx"
        │   └── flags: ignore_case, extended, multi_line
        ├── @ InterpolatedRegularExpressionNode (location: (544...557))
        │   ├── opening_loc: (544...545) = "/"
        │   ├── parts: (length: 1)
        │   │   └── @ EmbeddedStatementsNode (location: (545...556))
        │   │       ├── opening_loc: (545...547) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (547...555))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ StringNode (location: (547...555))
        │   │       │           ├── opening_loc: (547...548) = "\""
        │   │       │           ├── content_loc: (548...554) = "\\u0000"
        │   │       │           ├── closing_loc: (554...555) = "\""
        │   │       │           └── unescaped: "\u0000"
        │   │       └── closing_loc: (555...556) = "}"
        │   ├── closing_loc: (556...557) = "/"
        │   └── flags: ∅
        ├── @ RegularExpressionNode (location: (558...562))
        │   ├── opening_loc: (558...559) = "/"
        │   ├── content_loc: (559...561) = "\\n"
        │   ├── closing_loc: (561...562) = "/"
        │   ├── unescaped: "\n"
        │   └── flags: ∅
        ├── @ RegularExpressionNode (location: (563...567))
        │   ├── opening_loc: (563...564) = "/"
        │   ├── content_loc: (564...566) = "\\n"
        │   ├── closing_loc: (566...567) = "/"
        │   ├── unescaped: "\n"
        │   └── flags: ∅
        ├── @ RegularExpressionNode (location: (568...573))
        │   ├── opening_loc: (568...569) = "/"
        │   ├── content_loc: (569...571) = "\\n"
        │   ├── closing_loc: (571...573) = "/x"
        │   ├── unescaped: "\n"
        │   └── flags: extended
        ├── @ RegularExpressionNode (location: (574...581))
        │   ├── opening_loc: (574...575) = "/"
        │   ├── content_loc: (575...579) = "\\/\\/"
        │   ├── closing_loc: (579...581) = "/x"
        │   ├── unescaped: "//"
        │   └── flags: extended
        ├── @ InterpolatedSymbolNode (location: (582...597))
        │   ├── opening_loc: (582...584) = ":\""
        │   ├── parts: (length: 3)
        │   │   ├── @ StringNode (location: (584...587))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (584...587) = "foo"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "foo"
        │   │   ├── @ EmbeddedStatementsNode (location: (587...593))
        │   │   │   ├── opening_loc: (587...589) = "\#{"
        │   │   │   ├── statements:
        │   │   │   │   @ StatementsNode (location: (589...592))
        │   │   │   │   └── body: (length: 1)
        │   │   │   │       └── @ CallNode (location: (589...592))
        │   │   │   │           ├── receiver: ∅
        │   │   │   │           ├── call_operator_loc: ∅
        │   │   │   │           ├── message_loc: (589...592) = "bar"
        │   │   │   │           ├── opening_loc: ∅
        │   │   │   │           ├── arguments: ∅
        │   │   │   │           ├── closing_loc: ∅
        │   │   │   │           ├── block: ∅
        │   │   │   │           ├── flags: variable_call
        │   │   │   │           └── name: "bar"
        │   │   │   └── closing_loc: (592...593) = "}"
        │   │   └── @ StringNode (location: (593...596))
        │   │       ├── opening_loc: ∅
        │   │       ├── content_loc: (593...596) = "baz"
        │   │       ├── closing_loc: ∅
        │   │       └── unescaped: "baz"
        │   └── closing_loc: (596...597) = "\""
        ├── @ InterpolatedSymbolNode (location: (598...609))
        │   ├── opening_loc: (598...600) = ":\""
        │   ├── parts: (length: 1)
        │   │   └── @ EmbeddedStatementsNode (location: (600...608))
        │   │       ├── opening_loc: (600...602) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (602...607))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ StringNode (location: (602...607))
        │   │       │           ├── opening_loc: (602...603) = "\""
        │   │       │           ├── content_loc: (603...606) = "foo"
        │   │       │           ├── closing_loc: (606...607) = "\""
        │   │       │           └── unescaped: "foo"
        │   │       └── closing_loc: (607...608) = "}"
        │   └── closing_loc: (608...609) = "\""
        ├── @ RangeNode (location: (610...624))
        │   ├── left:
        │   │   @ ParenthesesNode (location: (610...621))
        │   │   ├── body:
        │   │   │   @ StatementsNode (location: (611...620))
        │   │   │   └── body: (length: 1)
        │   │   │       └── @ CallNode (location: (611...620))
        │   │   │           ├── receiver:
        │   │   │           │   @ FloatNode (location: (611...614))
        │   │   │           ├── call_operator_loc: ∅
        │   │   │           ├── message_loc: (615...616) = "/"
        │   │   │           ├── opening_loc: ∅
        │   │   │           ├── arguments:
        │   │   │           │   @ ArgumentsNode (location: (617...620))
        │   │   │           │   └── arguments: (length: 1)
        │   │   │           │       └── @ FloatNode (location: (617...620))
        │   │   │           ├── closing_loc: ∅
        │   │   │           ├── block: ∅
        │   │   │           ├── flags: ∅
        │   │   │           └── name: "/"
        │   │   ├── opening_loc: (610...611) = "("
        │   │   └── closing_loc: (620...621) = ")"
        │   ├── right:
        │   │   @ IntegerNode (location: (623...624))
        │   │   └── flags: decimal
        │   ├── operator_loc: (621...623) = ".."
        │   └── flags: ∅
        ├── @ RangeNode (location: (625...639))
        │   ├── left:
        │   │   @ IntegerNode (location: (625...626))
        │   │   └── flags: decimal
        │   ├── right:
        │   │   @ ParenthesesNode (location: (628...639))
        │   │   ├── body:
        │   │   │   @ StatementsNode (location: (629...638))
        │   │   │   └── body: (length: 1)
        │   │   │       └── @ CallNode (location: (629...638))
        │   │   │           ├── receiver:
        │   │   │           │   @ FloatNode (location: (629...632))
        │   │   │           ├── call_operator_loc: ∅
        │   │   │           ├── message_loc: (633...634) = "/"
        │   │   │           ├── opening_loc: ∅
        │   │   │           ├── arguments:
        │   │   │           │   @ ArgumentsNode (location: (635...638))
        │   │   │           │   └── arguments: (length: 1)
        │   │   │           │       └── @ FloatNode (location: (635...638))
        │   │   │           ├── closing_loc: ∅
        │   │   │           ├── block: ∅
        │   │   │           ├── flags: ∅
        │   │   │           └── name: "/"
        │   │   ├── opening_loc: (628...629) = "("
        │   │   └── closing_loc: (638...639) = ")"
        │   ├── operator_loc: (626...628) = ".."
        │   └── flags: ∅
        ├── @ RangeNode (location: (640...656))
        │   ├── left:
        │   │   @ ParenthesesNode (location: (640...651))
        │   │   ├── body:
        │   │   │   @ StatementsNode (location: (641...650))
        │   │   │   └── body: (length: 1)
        │   │   │       └── @ CallNode (location: (641...650))
        │   │   │           ├── receiver:
        │   │   │           │   @ FloatNode (location: (641...644))
        │   │   │           ├── call_operator_loc: ∅
        │   │   │           ├── message_loc: (645...646) = "/"
        │   │   │           ├── opening_loc: ∅
        │   │   │           ├── arguments:
        │   │   │           │   @ ArgumentsNode (location: (647...650))
        │   │   │           │   └── arguments: (length: 1)
        │   │   │           │       └── @ FloatNode (location: (647...650))
        │   │   │           ├── closing_loc: ∅
        │   │   │           ├── block: ∅
        │   │   │           ├── flags: ∅
        │   │   │           └── name: "/"
        │   │   ├── opening_loc: (640...641) = "("
        │   │   └── closing_loc: (650...651) = ")"
        │   ├── right:
        │   │   @ IntegerNode (location: (653...656))
        │   │   └── flags: decimal
        │   ├── operator_loc: (651...653) = ".."
        │   └── flags: ∅
        ├── @ FloatNode (location: (657...661))
        ├── @ FloatNode (location: (662...665))
        ├── @ ArrayNode (location: (666...672))
        │   ├── elements: (length: 2)
        │   │   ├── @ IntegerNode (location: (667...668))
        │   │   │   └── flags: decimal
        │   │   └── @ IntegerNode (location: (670...671))
        │   │       └── flags: decimal
        │   ├── opening_loc: (666...667) = "["
        │   └── closing_loc: (671...672) = "]"
        ├── @ ArrayNode (location: (673...684))
        │   ├── elements: (length: 3)
        │   │   ├── @ IntegerNode (location: (674...675))
        │   │   │   └── flags: decimal
        │   │   ├── @ ParenthesesNode (location: (677...679))
        │   │   │   ├── body: ∅
        │   │   │   ├── opening_loc: (677...678) = "("
        │   │   │   └── closing_loc: (678...679) = ")"
        │   │   └── @ CallNode (location: (681...683))
        │   │       ├── receiver: ∅
        │   │       ├── call_operator_loc: ∅
        │   │       ├── message_loc: (681...683) = "n2"
        │   │       ├── opening_loc: ∅
        │   │       ├── arguments: ∅
        │   │       ├── closing_loc: ∅
        │   │       ├── block: ∅
        │   │       ├── flags: variable_call
        │   │       └── name: "n2"
        │   ├── opening_loc: (673...674) = "["
        │   └── closing_loc: (683...684) = "]"
        ├── @ ArrayNode (location: (685...688))
        │   ├── elements: (length: 1)
        │   │   └── @ IntegerNode (location: (686...687))
        │   │       └── flags: decimal
        │   ├── opening_loc: (685...686) = "["
        │   └── closing_loc: (687...688) = "]"
        ├── @ ArrayNode (location: (689...691))
        │   ├── elements: (length: 0)
        │   ├── opening_loc: (689...690) = "["
        │   └── closing_loc: (690...691) = "]"
        ├── @ ArrayNode (location: (692...702))
        │   ├── elements: (length: 2)
        │   │   ├── @ IntegerNode (location: (693...694))
        │   │   │   └── flags: decimal
        │   │   └── @ SplatNode (location: (696...701))
        │   │       ├── operator_loc: (696...697) = "*"
        │   │       └── expression:
        │   │           @ InstanceVariableReadNode (location: (697...701))
        │   │           └── name: :@foo
        │   ├── opening_loc: (692...693) = "["
        │   └── closing_loc: (701...702) = "]"
        ├── @ ArrayNode (location: (703...713))
        │   ├── elements: (length: 2)
        │   │   ├── @ SplatNode (location: (704...709))
        │   │   │   ├── operator_loc: (704...705) = "*"
        │   │   │   └── expression:
        │   │   │       @ InstanceVariableReadNode (location: (705...709))
        │   │   │       └── name: :@foo
        │   │   └── @ IntegerNode (location: (711...712))
        │   │       └── flags: decimal
        │   ├── opening_loc: (703...704) = "["
        │   └── closing_loc: (712...713) = "]"
        ├── @ ArrayNode (location: (714...728))
        │   ├── elements: (length: 2)
        │   │   ├── @ SplatNode (location: (715...720))
        │   │   │   ├── operator_loc: (715...716) = "*"
        │   │   │   └── expression:
        │   │   │       @ InstanceVariableReadNode (location: (716...720))
        │   │   │       └── name: :@foo
        │   │   └── @ SplatNode (location: (722...727))
        │   │       ├── operator_loc: (722...723) = "*"
        │   │       └── expression:
        │   │           @ InstanceVariableReadNode (location: (723...727))
        │   │           └── name: :@baz
        │   ├── opening_loc: (714...715) = "["
        │   └── closing_loc: (727...728) = "]"
        ├── @ HashNode (location: (729...731))
        │   ├── opening_loc: (729...730) = "{"
        │   ├── elements: (length: 0)
        │   └── closing_loc: (730...731) = "}"
        ├── @ HashNode (location: (732...744))
        │   ├── opening_loc: (732...733) = "{"
        │   ├── elements: (length: 1)
        │   │   └── @ AssocNode (location: (734...742))
        │   │       ├── key:
        │   │       │   @ ParenthesesNode (location: (734...736))
        │   │       │   ├── body: ∅
        │   │       │   ├── opening_loc: (734...735) = "("
        │   │       │   └── closing_loc: (735...736) = ")"
        │   │       ├── value:
        │   │       │   @ ParenthesesNode (location: (740...742))
        │   │       │   ├── body: ∅
        │   │       │   ├── opening_loc: (740...741) = "("
        │   │       │   └── closing_loc: (741...742) = ")"
        │   │       └── operator_loc: (737...739) = "=>"
        │   └── closing_loc: (743...744) = "}"
        ├── @ HashNode (location: (745...755))
        │   ├── opening_loc: (745...746) = "{"
        │   ├── elements: (length: 1)
        │   │   └── @ AssocNode (location: (747...753))
        │   │       ├── key:
        │   │       │   @ IntegerNode (location: (747...748))
        │   │       │   └── flags: decimal
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (752...753))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: (749...751) = "=>"
        │   └── closing_loc: (754...755) = "}"
        ├── @ HashNode (location: (756...774))
        │   ├── opening_loc: (756...757) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (758...764))
        │   │   │   ├── key:
        │   │   │   │   @ IntegerNode (location: (758...759))
        │   │   │   │   └── flags: decimal
        │   │   │   ├── value:
        │   │   │   │   @ IntegerNode (location: (763...764))
        │   │   │   │   └── flags: decimal
        │   │   │   └── operator_loc: (760...762) = "=>"
        │   │   └── @ AssocNode (location: (766...772))
        │   │       ├── key:
        │   │       │   @ IntegerNode (location: (766...767))
        │   │       │   └── flags: decimal
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (771...772))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: (768...770) = "=>"
        │   └── closing_loc: (773...774) = "}"
        ├── @ HashNode (location: (775...802))
        │   ├── opening_loc: (775...776) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (777...794))
        │   │   │   ├── key:
        │   │   │   │   @ SymbolNode (location: (777...779))
        │   │   │   │   ├── opening_loc: ∅
        │   │   │   │   ├── value_loc: (777...778) = "a"
        │   │   │   │   ├── closing_loc: (778...779) = ":"
        │   │   │   │   └── unescaped: "a"
        │   │   │   ├── value:
        │   │   │   │   @ ParenthesesNode (location: (780...794))
        │   │   │   │   ├── body:
        │   │   │   │   │   @ StatementsNode (location: (781...793))
        │   │   │   │   │   └── body: (length: 1)
        │   │   │   │   │       └── @ RescueModifierNode (location: (781...793))
        │   │   │   │   │           ├── expression:
        │   │   │   │   │           │   @ IntegerNode (location: (781...782))
        │   │   │   │   │           │   └── flags: decimal
        │   │   │   │   │           ├── keyword_loc: (783...789) = "rescue"
        │   │   │   │   │           └── rescue_expression:
        │   │   │   │   │               @ CallNode (location: (790...793))
        │   │   │   │   │               ├── receiver: ∅
        │   │   │   │   │               ├── call_operator_loc: ∅
        │   │   │   │   │               ├── message_loc: (790...793) = "foo"
        │   │   │   │   │               ├── opening_loc: ∅
        │   │   │   │   │               ├── arguments: ∅
        │   │   │   │   │               ├── closing_loc: ∅
        │   │   │   │   │               ├── block: ∅
        │   │   │   │   │               ├── flags: variable_call
        │   │   │   │   │               └── name: "foo"
        │   │   │   │   ├── opening_loc: (780...781) = "("
        │   │   │   │   └── closing_loc: (793...794) = ")"
        │   │   │   └── operator_loc: ∅
        │   │   └── @ AssocNode (location: (796...800))
        │   │       ├── key:
        │   │       │   @ SymbolNode (location: (796...798))
        │   │       │   ├── opening_loc: ∅
        │   │       │   ├── value_loc: (796...797) = "b"
        │   │       │   ├── closing_loc: (797...798) = ":"
        │   │       │   └── unescaped: "b"
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (799...800))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: ∅
        │   └── closing_loc: (801...802) = "}"
        ├── @ HashNode (location: (803...817))
        │   ├── opening_loc: (803...804) = "{"
        │   ├── elements: (length: 2)
        │   │   ├── @ AssocNode (location: (805...809))
        │   │   │   ├── key:
        │   │   │   │   @ SymbolNode (location: (805...807))
        │   │   │   │   ├── opening_loc: ∅
        │   │   │   │   ├── value_loc: (805...806) = "a"
        │   │   │   │   ├── closing_loc: (806...807) = ":"
        │   │   │   │   └── unescaped: "a"
        │   │   │   ├── value:
        │   │   │   │   @ IntegerNode (location: (808...809))
        │   │   │   │   └── flags: decimal
        │   │   │   └── operator_loc: ∅
        │   │   └── @ AssocNode (location: (811...815))
        │   │       ├── key:
        │   │       │   @ SymbolNode (location: (811...813))
        │   │       │   ├── opening_loc: ∅
        │   │       │   ├── value_loc: (811...812) = "b"
        │   │       │   ├── closing_loc: (812...813) = ":"
        │   │       │   └── unescaped: "b"
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (814...815))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: ∅
        │   └── closing_loc: (816...817) = "}"
        ├── @ HashNode (location: (818...827))
        │   ├── opening_loc: (818...819) = "{"
        │   ├── elements: (length: 1)
        │   │   └── @ AssocNode (location: (820...825))
        │   │       ├── key:
        │   │       │   @ SymbolNode (location: (820...822))
        │   │       │   ├── opening_loc: ∅
        │   │       │   ├── value_loc: (820...821) = "a"
        │   │       │   ├── closing_loc: (821...822) = ":"
        │   │       │   └── unescaped: "a"
        │   │       ├── value:
        │   │       │   @ SymbolNode (location: (823...825))
        │   │       │   ├── opening_loc: (823...824) = ":"
        │   │       │   ├── value_loc: (824...825) = "a"
        │   │       │   ├── closing_loc: ∅
        │   │       │   └── unescaped: "a"
        │   │       └── operator_loc: ∅
        │   └── closing_loc: (826...827) = "}"
        ├── @ HashNode (location: (828...843))
        │   ├── opening_loc: (828...829) = "{"
        │   ├── elements: (length: 1)
        │   │   └── @ AssocNode (location: (830...841))
        │   │       ├── key:
        │   │       │   @ SymbolNode (location: (830...836))
        │   │       │   ├── opening_loc: (830...832) = ":\""
        │   │       │   ├── value_loc: (832...835) = "a b"
        │   │       │   ├── closing_loc: (835...836) = "\""
        │   │       │   └── unescaped: "a b"
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (840...841))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: (837...839) = "=>"
        │   └── closing_loc: (842...843) = "}"
        ├── @ HashNode (location: (844...856))
        │   ├── opening_loc: (844...845) = "{"
        │   ├── elements: (length: 1)
        │   │   └── @ AssocNode (location: (846...854))
        │   │       ├── key:
        │   │       │   @ SymbolNode (location: (846...849))
        │   │       │   ├── opening_loc: (846...847) = ":"
        │   │       │   ├── value_loc: (847...849) = "-@"
        │   │       │   ├── closing_loc: ∅
        │   │       │   └── unescaped: "-@"
        │   │       ├── value:
        │   │       │   @ IntegerNode (location: (853...854))
        │   │       │   └── flags: decimal
        │   │       └── operator_loc: (850...852) = "=>"
        │   └── closing_loc: (855...856) = "}"
        ├── @ InterpolatedStringNode (location: (857...869))
        │   ├── opening_loc: (857...858) = "\""
        │   ├── parts: (length: 4)
        │   │   ├── @ EmbeddedStatementsNode (location: (858...861))
        │   │   │   ├── opening_loc: (858...860) = "\#{"
        │   │   │   ├── statements: ∅
        │   │   │   └── closing_loc: (860...861) = "}"
        │   │   ├── @ StringNode (location: (861...862))
        │   │   │   ├── opening_loc: ∅
        │   │   │   ├── content_loc: (861...862) = "\n"
        │   │   │   ├── closing_loc: ∅
        │   │   │   └── unescaped: "\n"
        │   │   ├── @ EmbeddedStatementsNode (location: (862...865))
        │   │   │   ├── opening_loc: (862...864) = "\#{"
        │   │   │   ├── statements: ∅
        │   │   │   └── closing_loc: (864...865) = "}"
        │   │   └── @ StringNode (location: (865...868))
        │   │       ├── opening_loc: ∅
        │   │       ├── content_loc: (865...868) = "\\na"
        │   │       ├── closing_loc: ∅
        │   │       └── unescaped: "\na"
        │   └── closing_loc: (868...869) = "\""
        ├── @ CallNode (location: (870...892))
        │   ├── receiver: ∅
        │   ├── call_operator_loc: ∅
        │   ├── message_loc: (870...873) = "foo"
        │   ├── opening_loc: ∅
        │   ├── arguments: ∅
        │   ├── closing_loc: ∅
        │   ├── block:
        │   │   @ BlockNode (location: (874...892))
        │   │   ├── locals: []
        │   │   ├── parameters: ∅
        │   │   ├── body:
        │   │   │   @ StatementsNode (location: (878...890))
        │   │   │   └── body: (length: 1)
        │   │   │       └── @ InterpolatedStringNode (location: (878...890))
        │   │   │           ├── opening_loc: (878...879) = "\""
        │   │   │           ├── parts: (length: 4)
        │   │   │           │   ├── @ EmbeddedStatementsNode (location: (879...882))
        │   │   │           │   │   ├── opening_loc: (879...881) = "\#{"
        │   │   │           │   │   ├── statements: ∅
        │   │   │           │   │   └── closing_loc: (881...882) = "}"
        │   │   │           │   ├── @ StringNode (location: (882...883))
        │   │   │           │   │   ├── opening_loc: ∅
        │   │   │           │   │   ├── content_loc: (882...883) = "\n"
        │   │   │           │   │   ├── closing_loc: ∅
        │   │   │           │   │   └── unescaped: "\n"
        │   │   │           │   ├── @ EmbeddedStatementsNode (location: (883...886))
        │   │   │           │   │   ├── opening_loc: (883...885) = "\#{"
        │   │   │           │   │   ├── statements: ∅
        │   │   │           │   │   └── closing_loc: (885...886) = "}"
        │   │   │           │   └── @ StringNode (location: (886...889))
        │   │   │           │       ├── opening_loc: ∅
        │   │   │           │       ├── content_loc: (886...889) = "\\na"
        │   │   │           │       ├── closing_loc: ∅
        │   │   │           │       └── unescaped: "\na"
        │   │   │           └── closing_loc: (889...890) = "\""
        │   │   ├── opening_loc: (874...875) = "{"
        │   │   └── closing_loc: (891...892) = "}"
        │   ├── flags: ∅
        │   └── name: "foo"
        ├── @ SymbolNode (location: (893...901))
        │   ├── opening_loc: (893...895) = ":\""
        │   ├── value_loc: (895...900) = "a\\\\\nb"
        │   ├── closing_loc: (900...901) = "\""
        │   └── unescaped: "a\\\nb"
        └── @ InterpolatedXStringNode (location: (902...916))
            ├── opening_loc: (902...903) = "`"
            ├── parts: (length: 3)
            │   ├── @ StringNode (location: (903...907))
            │   │   ├── opening_loc: ∅
            │   │   ├── content_loc: (903...907) = "  x\n"
            │   │   ├── closing_loc: ∅
            │   │   └── unescaped: "  x\n"
            │   ├── @ EmbeddedStatementsNode (location: (907...913))
            │   │   ├── opening_loc: (907...909) = "\#{"
            │   │   ├── statements:
            │   │   │   @ StatementsNode (location: (909...912))
            │   │   │   └── body: (length: 1)
            │   │   │       └── @ CallNode (location: (909...912))
            │   │   │           ├── receiver: ∅
            │   │   │           ├── call_operator_loc: ∅
            │   │   │           ├── message_loc: (909...912) = "foo"
            │   │   │           ├── opening_loc: ∅
            │   │   │           ├── arguments: ∅
            │   │   │           ├── closing_loc: ∅
            │   │   │           ├── block: ∅
            │   │   │           ├── flags: variable_call
            │   │   │           └── name: "foo"
            │   │   └── closing_loc: (912...913) = "}"
            │   └── @ StringNode (location: (913...915))
            │       ├── opening_loc: ∅
            │       ├── content_loc: (913...915) = "\n#"
            │       ├── closing_loc: ∅
            │       └── unescaped: "\n#"
            └── closing_loc: (915...916) = "`"
