- DOCUMENT@0..35
    - INPUT_OBJECT_TYPE_DEFINITION@0..35
        - input_KW@0..5 "input"
        - WHITESPACE@5..6 " "
        - INPUT_FIELDS_DEFINITION@6..35
            - L_CURLY@6..7 "{"
            - WHITESPACE@7..12 "\n    "
            - INPUT_VALUE_DEFINITION@12..21
                - NAME@12..13
                    - IDENT@12..13 "a"
                - COLON@13..14 ":"
                - WHITESPACE@14..15 " "
                - NAMED_TYPE@15..21
                    - NAME@15..21
                        - IDENT@15..21 "String"
            - WHITESPACE@21..26 "\n    "
            - INPUT_VALUE_DEFINITION@26..33
                - NAME@26..27
                    - IDENT@26..27 "b"
                - COLON@27..28 ":"
                - WHITESPACE@28..29 " "
                - NON_NULL_TYPE@29..33
                    - NAMED_TYPE@29..32
                        - NAME@29..32
                            - IDENT@29..32 "Int"
                    - BANG@32..33 "!"
            - WHITESPACE@33..34 "\n"
            - R_CURLY@34..35 "}"
- ERROR@6:7 "expected a Name" {
recursion limit: 500, high: 0