@ ProgramNode (location: (0...44))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...44))
    └── body: (length: 1)
        └── @ BeginNode (location: (0...44))
            ├── begin_keyword_loc: (0...5) = "begin"
            ├── statements:
            │   @ StatementsNode (location: (8...9))
            │   └── body: (length: 1)
            │       └── @ IntegerNode (location: (8...9))
            │           └── flags: decimal
            ├── rescue_clause:
            │   @ RescueNode (location: (10...20))
            │   ├── keyword_loc: (10...16) = "rescue"
            │   ├── exceptions: (length: 0)
            │   ├── operator_loc: ∅
            │   ├── reference: ∅
            │   ├── statements:
            │   │   @ StatementsNode (location: (19...20))
            │   │   └── body: (length: 1)
            │   │       └── @ IntegerNode (location: (19...20))
            │   │           └── flags: decimal
            │   └── consequent: ∅
            ├── else_clause:
            │   @ ElseNode (location: (21...36))
            │   ├── else_keyword_loc: (21...25) = "else"
            │   ├── statements:
            │   │   @ StatementsNode (location: (28...29))
            │   │   └── body: (length: 1)
            │   │       └── @ IntegerNode (location: (28...29))
            │   │           └── flags: decimal
            │   └── end_keyword_loc: (30...36) = "ensure"
            ├── ensure_clause:
            │   @ EnsureNode (location: (30...44))
            │   ├── ensure_keyword_loc: (30...36) = "ensure"
            │   ├── statements:
            │   │   @ StatementsNode (location: (39...40))
            │   │   └── body: (length: 1)
            │   │       └── @ IntegerNode (location: (39...40))
            │   │           └── flags: decimal
            │   └── end_keyword_loc: (41...44) = "end"
            └── end_keyword_loc: (41...44) = "end"
