@ ProgramNode (location: (1,0)-(1,39))
├── flags: ∅
├── locals: [:ex]
└── statements:
    @ StatementsNode (location: (1,0)-(1,39))
    ├── flags: ∅
    └── body: (length: 1)
        └── @ BeginNode (location: (1,0)-(1,39))
            ├── flags: newline
            ├── begin_keyword_loc: (1,0)-(1,5) = "begin"
            ├── statements:
            │   @ StatementsNode (location: (1,7)-(1,11))
            │   ├── flags: ∅
            │   └── body: (length: 1)
            │       └── @ CallNode (location: (1,7)-(1,11))
            │           ├── flags: newline, variable_call, ignore_visibility
            │           ├── receiver: ∅
            │           ├── call_operator_loc: ∅
            │           ├── name: :meth
            │           ├── message_loc: (1,7)-(1,11) = "meth"
            │           ├── opening_loc: ∅
            │           ├── arguments: ∅
            │           ├── closing_loc: ∅
            │           └── block: ∅
            ├── rescue_clause:
            │   @ RescueNode (location: (1,13)-(1,34))
            │   ├── flags: ∅
            │   ├── keyword_loc: (1,13)-(1,19) = "rescue"
            │   ├── exceptions: (length: 1)
            │   │   └── @ CallNode (location: (1,20)-(1,23))
            │   │       ├── flags: variable_call, ignore_visibility
            │   │       ├── receiver: ∅
            │   │       ├── call_operator_loc: ∅
            │   │       ├── name: :foo
            │   │       ├── message_loc: (1,20)-(1,23) = "foo"
            │   │       ├── opening_loc: ∅
            │   │       ├── arguments: ∅
            │   │       ├── closing_loc: ∅
            │   │       └── block: ∅
            │   ├── operator_loc: (1,24)-(1,26) = "=>"
            │   ├── reference:
            │   │   @ LocalVariableTargetNode (location: (1,27)-(1,29))
            │   │   ├── flags: ∅
            │   │   ├── name: :ex
            │   │   └── depth: 0
            │   ├── statements:
            │   │   @ StatementsNode (location: (1,31)-(1,34))
            │   │   ├── flags: ∅
            │   │   └── body: (length: 1)
            │   │       └── @ CallNode (location: (1,31)-(1,34))
            │   │           ├── flags: newline, variable_call, ignore_visibility
            │   │           ├── receiver: ∅
            │   │           ├── call_operator_loc: ∅
            │   │           ├── name: :bar
            │   │           ├── message_loc: (1,31)-(1,34) = "bar"
            │   │           ├── opening_loc: ∅
            │   │           ├── arguments: ∅
            │   │           ├── closing_loc: ∅
            │   │           └── block: ∅
            │   └── subsequent: ∅
            ├── else_clause: ∅
            ├── ensure_clause: ∅
            └── end_keyword_loc: (1,36)-(1,39) = "end"
