@ ProgramNode (location: (1,0)-(1,9))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(1,9))
    └── body: (length: 1)
        └── @ CallNode (location: (1,0)-(1,9))
            ├── receiver: ∅
            ├── call_operator_loc: ∅
            ├── message_loc: (1,0)-(1,1) = "p"
            ├── opening_loc: ∅
            ├── arguments:
            │   @ ArgumentsNode (location: (1,2)-(1,9))
            │   ├── arguments: (length: 1)
            │   │   └── @ RangeNode (location: (1,2)-(1,9))
            │   │       ├── left:
            │   │       │   @ ParenthesesNode (location: (1,2)-(1,4))
            │   │       │   ├── body: ∅
            │   │       │   ├── opening_loc: (1,2)-(1,3) = "("
            │   │       │   └── closing_loc: (1,3)-(1,4) = ")"
            │   │       ├── right:
            │   │       │   @ NilNode (location: (1,6)-(1,9))
            │   │       ├── operator_loc: (1,4)-(1,6) = ".."
            │   │       └── flags: ∅
            │   └── flags: ∅
            ├── closing_loc: ∅
            ├── block: ∅
            ├── flags: ∅
            └── name: :p
