@ ProgramNode (location: (1,0)-(1,26))
├── locals: []
└── statements:
    @ StatementsNode (location: (1,0)-(1,26))
    └── body: (length: 1)
        └── @ StringNode (location: (1,0)-(1,26))
            ├── flags: ∅
            ├── opening_loc: (1,0)-(1,3) = "%q|"
            ├── content_loc: (1,3)-(1,25) = "blah blah \\| blah blah"
            ├── closing_loc: (1,25)-(1,26) = "|"
            └── unescaped: "blah blah | blah blah"