@ ProgramNode (location: (0...35))
├── locals: [:c, :rest]
└── statements:
    @ StatementsNode (location: (0...35))
    └── body: (length: 1)
        └── @ CaseNode (location: (0...35))
            ├── predicate:
            │   @ SymbolNode (location: (5...7))
            │   ├── opening_loc: (5...6) = ":"
            │   ├── value_loc: (6...7) = "a"
            │   ├── closing_loc: ∅
            │   └── unescaped: "a"
            ├── conditions: (length: 1)
            │   └── @ InNode (location: (8...31))
            │       ├── pattern:
            │       │   @ HashPatternNode (location: (11...23))
            │       │   ├── constant: ∅
            │       │   ├── assocs: (length: 2)
            │       │   │   ├── @ AssocNode (location: (11...15))
            │       │   │   │   ├── key:
            │       │   │   │   │   @ SymbolNode (location: (11...13))
            │       │   │   │   │   ├── opening_loc: ∅
            │       │   │   │   │   ├── value_loc: (11...12) = "b"
            │       │   │   │   │   ├── closing_loc: (12...13) = ":"
            │       │   │   │   │   └── unescaped: "b"
            │       │   │   │   ├── value:
            │       │   │   │   │   @ LocalVariableTargetNode (location: (14...15))
            │       │   │   │   │   ├── name: :c
            │       │   │   │   │   └── depth: 0
            │       │   │   │   └── operator_loc: ∅
            │       │   │   └── @ AssocSplatNode (location: (17...23))
            │       │   │       ├── value:
            │       │   │       │   @ LocalVariableTargetNode (location: (19...23))
            │       │   │       │   ├── name: :rest
            │       │   │       │   └── depth: 0
            │       │   │       └── operator_loc: (17...19) = "**"
            │       │   ├── kwrest: ∅
            │       │   ├── opening_loc: ∅
            │       │   └── closing_loc: ∅
            │       ├── statements:
            │       │   @ StatementsNode (location: (29...31))
            │       │   └── body: (length: 1)
            │       │       └── @ SymbolNode (location: (29...31))
            │       │           ├── opening_loc: (29...30) = ":"
            │       │           ├── value_loc: (30...31) = "d"
            │       │           ├── closing_loc: ∅
            │       │           └── unescaped: "d"
            │       ├── in_loc: (8...10) = "in"
            │       └── then_loc: (24...28) = "then"
            ├── consequent: ∅
            ├── case_keyword_loc: (0...4) = "case"
            └── end_keyword_loc: (32...35) = "end"
