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