- DOCUMENT@0..202
    - WHITESPACE@0..1 "\n"
    - OPERATION_DEFINITION@1..202
        - SELECTION_SET@1..202
            - L_CURLY@1..2 "{"
            - WHITESPACE@2..7 "\n    "
            - FIELD@7..178
                - NAME@7..11
                    - IDENT@7..10 "pet"
                    - WHITESPACE@10..11 " "
                - SELECTION_SET@11..178
                    - L_CURLY@11..12 "{"
                    - WHITESPACE@12..21 "\n        "
                    - FIELD@21..44
                        - ALIAS@21..27
                            - NAME@21..25
                                - IDENT@21..25 "name"
                            - COLON@25..26 ":"
                            - WHITESPACE@26..27 " "
                        - NAME@27..44
                            - IDENT@27..35 "nickname"
                            - WHITESPACE@35..44 "\n        "
                    - FIELD@44..107
                        - NAME@44..53
                            - IDENT@44..52 "birthday"
                            - WHITESPACE@52..53 " "
                        - SELECTION_SET@53..107
                            - L_CURLY@53..54 "{"
                            - WHITESPACE@54..67 "\n            "
                            - FIELD@67..85
                                - NAME@67..85
                                    - IDENT@67..72 "month"
                                    - WHITESPACE@72..85 "\n            "
                            - FIELD@85..97
                                - NAME@85..97
                                    - IDENT@85..88 "day"
                                    - WHITESPACE@88..97 "\n        "
                            - R_CURLY@97..98 "}"
                            - WHITESPACE@98..107 "\n        "
                    - FIELD@107..172
                        - NAME@107..117
                            - IDENT@107..116 "playmates"
                            - WHITESPACE@116..117 " "
                        - SELECTION_SET@117..172
                            - L_CURLY@117..118 "{"
                            - WHITESPACE@118..131 "\n            "
                            - FIELD@131..148
                                - NAME@131..148
                                    - IDENT@131..135 "name"
                                    - WHITESPACE@135..148 "\n            "
                            - FIELD@148..166
                                - NAME@148..166
                                    - IDENT@148..157 "faveSnack"
                                    - WHITESPACE@157..166 "\n        "
                            - R_CURLY@166..167 "}"
                            - WHITESPACE@167..172 "\n    "
                    - R_CURLY@172..173 "}"
                    - WHITESPACE@173..178 "\n    "
            - FIELD@178..201
                - NAME@178..187
                    - IDENT@178..187 "faveSnack"
                - ARGUMENTS@187..201
                    - L_PAREN@187..188 "("
                    - ARGUMENT@188..199
                        - NAME@188..196
                            - IDENT@188..196 "quantity"
                        - COLON@196..197 ":"
                        - WHITESPACE@197..198 " "
                        - INT_VALUE@198..199
                            - INT@198..199 "4"
                    - R_PAREN@199..200 ")"
                    - WHITESPACE@200..201 "\n"
            - R_CURLY@201..202 "}"
