JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@0..4 "let" [] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@4..5 "a" [] [],
                        },
                        variable_annotation: missing (optional),
                        initializer: missing (optional),
                    },
                ],
            },
            semicolon_token: SEMICOLON@5..6 ";" [] [],
        },
        JsExpressionStatement {
            expression: JsAssignmentExpression {
                left: TsNonNullAssertionAssignment {
                    assignment: JsIdentifierAssignment {
                        name_token: IDENT@6..8 "a" [Newline("\n")] [],
                    },
                    excl_token: BANG@8..10 "!" [] [Whitespace(" ")],
                },
                operator_token: AMPEQ@10..13 "&=" [] [Whitespace(" ")],
                right: JsNumberLiteralExpression {
                    value_token: JS_NUMBER_LITERAL@13..14 "2" [] [],
                },
            },
            semicolon_token: SEMICOLON@14..15 ";" [] [],
        },
        JsVariableStatement {
            declaration: JsVariableDeclaration {
                await_token: missing (optional),
                kind: LET_KW@15..20 "let" [Newline("\n")] [Whitespace(" ")],
                declarators: JsVariableDeclaratorList [
                    JsVariableDeclarator {
                        id: JsIdentifierBinding {
                            name_token: IDENT@20..22 "b" [] [Whitespace(" ")],
                        },
                        variable_annotation: missing (optional),
                        initializer: JsInitializerClause {
                            eq_token: EQ@22..24 "=" [] [Whitespace(" ")],
                            expression: JsObjectExpression {
                                l_curly_token: L_CURLY@24..26 "{" [] [Whitespace(" ")],
                                members: JsObjectMemberList [
                                    JsPropertyObjectMember {
                                        name: JsLiteralMemberName {
                                            value: IDENT@26..27 "a" [] [],
                                        },
                                        colon_token: COLON@27..29 ":" [] [Whitespace(" ")],
                                        value: JsNullLiteralExpression {
                                            value_token: NULL_KW@29..34 "null" [] [Whitespace(" ")],
                                        },
                                    },
                                ],
                                r_curly_token: R_CURLY@34..35 "}" [] [],
                            },
                        },
                    },
                ],
            },
            semicolon_token: SEMICOLON@35..36 ";" [] [],
        },
        JsExpressionStatement {
            expression: JsAssignmentExpression {
                left: TsNonNullAssertionAssignment {
                    assignment: JsStaticMemberAssignment {
                        object: JsIdentifierExpression {
                            name: JsReferenceIdentifier {
                                value_token: IDENT@36..38 "b" [Newline("\n")] [],
                            },
                        },
                        dot_token: DOT@38..39 "." [] [],
                        member: JsName {
                            value_token: IDENT@39..40 "a" [] [],
                        },
                    },
                    excl_token: BANG@40..42 "!" [] [Whitespace(" ")],
                },
                operator_token: AMPEQ@42..45 "&=" [] [Whitespace(" ")],
                right: JsNumberLiteralExpression {
                    value_token: JS_NUMBER_LITERAL@45..46 "5" [] [],
                },
            },
            semicolon_token: missing (optional),
        },
    ],
    eof_token: EOF@46..47 "" [Newline("\n")] [],
}

0: JS_MODULE@0..47
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..46
    0: JS_VARIABLE_STATEMENT@0..6
      0: JS_VARIABLE_DECLARATION@0..5
        0: (empty)
        1: LET_KW@0..4 "let" [] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@4..5
          0: JS_VARIABLE_DECLARATOR@4..5
            0: JS_IDENTIFIER_BINDING@4..5
              0: IDENT@4..5 "a" [] []
            1: (empty)
            2: (empty)
      1: SEMICOLON@5..6 ";" [] []
    1: JS_EXPRESSION_STATEMENT@6..15
      0: JS_ASSIGNMENT_EXPRESSION@6..14
        0: TS_NON_NULL_ASSERTION_ASSIGNMENT@6..10
          0: JS_IDENTIFIER_ASSIGNMENT@6..8
            0: IDENT@6..8 "a" [Newline("\n")] []
          1: BANG@8..10 "!" [] [Whitespace(" ")]
        1: AMPEQ@10..13 "&=" [] [Whitespace(" ")]
        2: JS_NUMBER_LITERAL_EXPRESSION@13..14
          0: JS_NUMBER_LITERAL@13..14 "2" [] []
      1: SEMICOLON@14..15 ";" [] []
    2: JS_VARIABLE_STATEMENT@15..36
      0: JS_VARIABLE_DECLARATION@15..35
        0: (empty)
        1: LET_KW@15..20 "let" [Newline("\n")] [Whitespace(" ")]
        2: JS_VARIABLE_DECLARATOR_LIST@20..35
          0: JS_VARIABLE_DECLARATOR@20..35
            0: JS_IDENTIFIER_BINDING@20..22
              0: IDENT@20..22 "b" [] [Whitespace(" ")]
            1: (empty)
            2: JS_INITIALIZER_CLAUSE@22..35
              0: EQ@22..24 "=" [] [Whitespace(" ")]
              1: JS_OBJECT_EXPRESSION@24..35
                0: L_CURLY@24..26 "{" [] [Whitespace(" ")]
                1: JS_OBJECT_MEMBER_LIST@26..34
                  0: JS_PROPERTY_OBJECT_MEMBER@26..34
                    0: JS_LITERAL_MEMBER_NAME@26..27
                      0: IDENT@26..27 "a" [] []
                    1: COLON@27..29 ":" [] [Whitespace(" ")]
                    2: JS_NULL_LITERAL_EXPRESSION@29..34
                      0: NULL_KW@29..34 "null" [] [Whitespace(" ")]
                2: R_CURLY@34..35 "}" [] []
      1: SEMICOLON@35..36 ";" [] []
    3: JS_EXPRESSION_STATEMENT@36..46
      0: JS_ASSIGNMENT_EXPRESSION@36..46
        0: TS_NON_NULL_ASSERTION_ASSIGNMENT@36..42
          0: JS_STATIC_MEMBER_ASSIGNMENT@36..40
            0: JS_IDENTIFIER_EXPRESSION@36..38
              0: JS_REFERENCE_IDENTIFIER@36..38
                0: IDENT@36..38 "b" [Newline("\n")] []
            1: DOT@38..39 "." [] []
            2: JS_NAME@39..40
              0: IDENT@39..40 "a" [] []
          1: BANG@40..42 "!" [] [Whitespace(" ")]
        1: AMPEQ@42..45 "&=" [] [Whitespace(" ")]
        2: JS_NUMBER_LITERAL_EXPRESSION@45..46
          0: JS_NUMBER_LITERAL@45..46 "5" [] []
      1: (empty)
  4: EOF@46..47 "" [Newline("\n")] []