@ ProgramNode (location: (1,0)-(3,12))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(3,12))
    └── body: (length: 3)
        ├── @ IfNode (location: (1,0)-(1,13))
        │   ├── if_keyword_loc: (1,0)-(1,2) = "if"
        │   ├── predicate:
        │   │   @ FlipFlopNode (location: (1,3)-(1,7))
        │   │   ├── flags: ∅
        │   │   ├── left:
        │   │   │   @ IntegerNode (location: (1,3)-(1,4))
        │   │   │   └── flags: decimal
        │   │   ├── right:
        │   │   │   @ IntegerNode (location: (1,6)-(1,7))
        │   │   │   └── flags: decimal
        │   │   └── operator_loc: (1,4)-(1,6) = ".."
        │   ├── then_keyword_loc: ∅
        │   ├── statements: ∅
        │   ├── consequent: ∅
        │   └── end_keyword_loc: (1,10)-(1,13) = "end"
        ├── @ IfNode (location: (2,0)-(2,12))
        │   ├── if_keyword_loc: (2,0)-(2,2) = "if"
        │   ├── predicate:
        │   │   @ FlipFlopNode (location: (2,3)-(2,6))
        │   │   ├── flags: ∅
        │   │   ├── left: ∅
        │   │   ├── right:
        │   │   │   @ IntegerNode (location: (2,5)-(2,6))
        │   │   │   └── flags: decimal
        │   │   └── operator_loc: (2,3)-(2,5) = ".."
        │   ├── then_keyword_loc: ∅
        │   ├── statements: ∅
        │   ├── consequent: ∅
        │   └── end_keyword_loc: (2,9)-(2,12) = "end"
        └── @ IfNode (location: (3,0)-(3,12))
            ├── if_keyword_loc: (3,0)-(3,2) = "if"
            ├── predicate:
            │   @ FlipFlopNode (location: (3,3)-(3,6))
            │   ├── flags: ∅
            │   ├── left:
            │   │   @ IntegerNode (location: (3,3)-(3,4))
            │   │   └── flags: decimal
            │   ├── right: ∅
            │   └── operator_loc: (3,4)-(3,6) = ".."
            ├── then_keyword_loc: ∅
            ├── statements: ∅
            ├── consequent: ∅
            └── end_keyword_loc: (3,9)-(3,12) = "end"
