@ ProgramNode (location: (1,0)-(1,5))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(1,5))
    └── body: (length: 1)
        └── @ RangeNode (location: (1,0)-(1,5))
            ├── flags: exclude_end
            ├── left:
            │   @ IntegerNode (location: (1,0)-(1,1))
            │   ├── flags: decimal
            │   └── value: 1
            ├── right:
            │   @ IntegerNode (location: (1,4)-(1,5))
            │   ├── flags: decimal
            │   └── value: 2
            └── operator_loc: (1,1)-(1,4) = "..."