JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        TsDeclareStatement {
            declare_token: DECLARE_KW@0..8 "declare" [] [Whitespace(" ")],
            declaration: JsClassDeclaration {
                decorators: JsDecoratorList [],
                abstract_token: missing (optional),
                class_token: CLASS_KW@8..14 "class" [] [Whitespace(" ")],
                id: JsIdentifierBinding {
                    name_token: IDENT@14..16 "A" [] [Whitespace(" ")],
                },
                type_parameters: missing (optional),
                extends_clause: missing (optional),
                implements_clause: missing (optional),
                l_curly_token: L_CURLY@16..18 "{" [] [Whitespace(" ")],
                members: JsClassMemberList [
                    JsBogusMember {
                        items: [
                            TsPropertySignatureModifierList [],
                            JsLiteralMemberName {
                                value: IDENT@18..22 "prop" [] [],
                            },
                            TsDefinitePropertyAnnotation {
                                excl_token: BANG@22..23 "!" [] [],
                                type_annotation: TsTypeAnnotation {
                                    colon_token: COLON@23..25 ":" [] [Whitespace(" ")],
                                    ty: TsStringType {
                                        string_token: STRING_KW@25..32 "string" [] [Whitespace(" ")],
                                    },
                                },
                            },
                        ],
                    },
                ],
                r_curly_token: R_CURLY@32..33 "}" [] [],
            },
        },
        JsClassDeclaration {
            decorators: JsDecoratorList [],
            abstract_token: missing (optional),
            class_token: CLASS_KW@33..40 "class" [Newline("\n")] [Whitespace(" ")],
            id: JsIdentifierBinding {
                name_token: IDENT@40..42 "B" [] [Whitespace(" ")],
            },
            type_parameters: missing (optional),
            extends_clause: missing (optional),
            implements_clause: missing (optional),
            l_curly_token: L_CURLY@42..44 "{" [] [Whitespace(" ")],
            members: JsClassMemberList [
                JsBogusMember {
                    items: [
                        TsPropertySignatureModifierList [
                            TsDeclareModifier {
                                modifier_token: DECLARE_KW@44..52 "declare" [] [Whitespace(" ")],
                            },
                        ],
                        JsLiteralMemberName {
                            value: IDENT@52..56 "prop" [] [],
                        },
                        TsDefinitePropertyAnnotation {
                            excl_token: BANG@56..57 "!" [] [],
                            type_annotation: TsTypeAnnotation {
                                colon_token: COLON@57..59 ":" [] [Whitespace(" ")],
                                ty: TsStringType {
                                    string_token: STRING_KW@59..66 "string" [] [Whitespace(" ")],
                                },
                            },
                        },
                    ],
                },
            ],
            r_curly_token: R_CURLY@66..67 "}" [] [],
        },
    ],
    eof_token: EOF@67..68 "" [Newline("\n")] [],
}

0: JS_MODULE@0..68
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..67
    0: TS_DECLARE_STATEMENT@0..33
      0: DECLARE_KW@0..8 "declare" [] [Whitespace(" ")]
      1: JS_CLASS_DECLARATION@8..33
        0: JS_DECORATOR_LIST@8..8
        1: (empty)
        2: CLASS_KW@8..14 "class" [] [Whitespace(" ")]
        3: JS_IDENTIFIER_BINDING@14..16
          0: IDENT@14..16 "A" [] [Whitespace(" ")]
        4: (empty)
        5: (empty)
        6: (empty)
        7: L_CURLY@16..18 "{" [] [Whitespace(" ")]
        8: JS_CLASS_MEMBER_LIST@18..32
          0: JS_BOGUS_MEMBER@18..32
            0: TS_PROPERTY_SIGNATURE_MODIFIER_LIST@18..18
            1: JS_LITERAL_MEMBER_NAME@18..22
              0: IDENT@18..22 "prop" [] []
            2: TS_DEFINITE_PROPERTY_ANNOTATION@22..32
              0: BANG@22..23 "!" [] []
              1: TS_TYPE_ANNOTATION@23..32
                0: COLON@23..25 ":" [] [Whitespace(" ")]
                1: TS_STRING_TYPE@25..32
                  0: STRING_KW@25..32 "string" [] [Whitespace(" ")]
        9: R_CURLY@32..33 "}" [] []
    1: JS_CLASS_DECLARATION@33..67
      0: JS_DECORATOR_LIST@33..33
      1: (empty)
      2: CLASS_KW@33..40 "class" [Newline("\n")] [Whitespace(" ")]
      3: JS_IDENTIFIER_BINDING@40..42
        0: IDENT@40..42 "B" [] [Whitespace(" ")]
      4: (empty)
      5: (empty)
      6: (empty)
      7: L_CURLY@42..44 "{" [] [Whitespace(" ")]
      8: JS_CLASS_MEMBER_LIST@44..66
        0: JS_BOGUS_MEMBER@44..66
          0: TS_PROPERTY_SIGNATURE_MODIFIER_LIST@44..52
            0: TS_DECLARE_MODIFIER@44..52
              0: DECLARE_KW@44..52 "declare" [] [Whitespace(" ")]
          1: JS_LITERAL_MEMBER_NAME@52..56
            0: IDENT@52..56 "prop" [] []
          2: TS_DEFINITE_PROPERTY_ANNOTATION@56..66
            0: BANG@56..57 "!" [] []
            1: TS_TYPE_ANNOTATION@57..66
              0: COLON@57..59 ":" [] [Whitespace(" ")]
              1: TS_STRING_TYPE@59..66
                0: STRING_KW@59..66 "string" [] [Whitespace(" ")]
      9: R_CURLY@66..67 "}" [] []
  4: EOF@67..68 "" [Newline("\n")] []
--
ts_definite_assignment_in_ambient_context.ts:1:23 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Definite assignment operators '!' aren't allowed in ambient contexts.
  
  > 1 │ declare class A { prop!: string }
      │                       ^
    2 │ class B { declare prop!: string }
    3 │ 
  
--
ts_definite_assignment_in_ambient_context.ts:2:23 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  × Definite assignment operators '!' aren't allowed in ambient contexts.
  
    1 │ declare class A { prop!: string }
  > 2 │ class B { declare prop!: string }
      │                       ^
    3 │ 
  
--
declare class A { prop!: string }
class B { declare prop!: string }