@ ProgramNode (location: (1,0)-(1,11))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(1,11))
    └── body: (length: 1)
        └── @ ConstantPathOperatorWriteNode (location: (1,0)-(1,11))
            ├── target:
            │   @ ConstantPathNode (location: (1,0)-(1,4))
            │   ├── parent:
            │   │   @ ConstantReadNode (location: (1,0)-(1,1))
            │   │   └── name: :A
            │   ├── child:
            │   │   @ ConstantReadNode (location: (1,3)-(1,4))
            │   │   └── name: :B
            │   └── delimiter_loc: (1,1)-(1,3) = "::"
            ├── operator_loc: (1,5)-(1,7) = "*="
            ├── value:
            │   @ CallNode (location: (1,8)-(1,11))
            │   ├── flags: ignore_visibility
            │   ├── receiver: ∅
            │   ├── call_operator_loc: ∅
            │   ├── name: :c
            │   ├── message_loc: (1,8)-(1,9) = "c"
            │   ├── opening_loc: ∅
            │   ├── arguments:
            │   │   @ ArgumentsNode (location: (1,10)-(1,11))
            │   │   ├── flags: ∅
            │   │   └── arguments: (length: 1)
            │   │       └── @ CallNode (location: (1,10)-(1,11))
            │   │           ├── flags: variable_call, ignore_visibility
            │   │           ├── receiver: ∅
            │   │           ├── call_operator_loc: ∅
            │   │           ├── name: :d
            │   │           ├── message_loc: (1,10)-(1,11) = "d"
            │   │           ├── opening_loc: ∅
            │   │           ├── arguments: ∅
            │   │           ├── closing_loc: ∅
            │   │           └── block: ∅
            │   ├── closing_loc: ∅
            │   └── block: ∅
            └── operator: :*