JsModule {
    bom_token: missing (optional),
    interpreter_token: missing (optional),
    directives: JsDirectiveList [],
    items: JsModuleItemList [
        JsExpressionStatement {
            expression: JsConditionalExpression {
                test: JsIdentifierExpression {
                    name: JsReferenceIdentifier {
                        value_token: IDENT@0..2 "a" [] [Whitespace(" ")],
                    },
                },
                question_mark_token: QUESTION@2..4 "?" [] [Whitespace(" ")],
                consequent: JsParenthesizedExpression {
                    l_paren_token: L_PAREN@4..5 "(" [] [],
                    expression: JsIdentifierExpression {
                        name: JsReferenceIdentifier {
                            value_token: IDENT@5..6 "b" [] [],
                        },
                    },
                    r_paren_token: R_PAREN@6..8 ")" [] [Whitespace(" ")],
                },
                colon_token: COLON@8..10 ":" [] [Whitespace(" ")],
                alternate: JsArrowFunctionExpression {
                    async_token: missing (optional),
                    type_parameters: missing (optional),
                    parameters: JsIdentifierBinding {
                        name_token: IDENT@10..12 "a" [] [Whitespace(" ")],
                    },
                    return_type_annotation: missing (optional),
                    fat_arrow_token: FAT_ARROW@12..15 "=>" [] [Whitespace(" ")],
                    body: JsFunctionBody {
                        l_curly_token: L_CURLY@15..16 "{" [] [],
                        directives: JsDirectiveList [],
                        statements: JsStatementList [],
                        r_curly_token: R_CURLY@16..17 "}" [] [],
                    },
                },
            },
            semicolon_token: SEMICOLON@17..18 ";" [] [],
        },
    ],
    eof_token: EOF@18..19 "" [Newline("\n")] [],
}

0: JS_MODULE@0..19
  0: (empty)
  1: (empty)
  2: JS_DIRECTIVE_LIST@0..0
  3: JS_MODULE_ITEM_LIST@0..18
    0: JS_EXPRESSION_STATEMENT@0..18
      0: JS_CONDITIONAL_EXPRESSION@0..17
        0: JS_IDENTIFIER_EXPRESSION@0..2
          0: JS_REFERENCE_IDENTIFIER@0..2
            0: IDENT@0..2 "a" [] [Whitespace(" ")]
        1: QUESTION@2..4 "?" [] [Whitespace(" ")]
        2: JS_PARENTHESIZED_EXPRESSION@4..8
          0: L_PAREN@4..5 "(" [] []
          1: JS_IDENTIFIER_EXPRESSION@5..6
            0: JS_REFERENCE_IDENTIFIER@5..6
              0: IDENT@5..6 "b" [] []
          2: R_PAREN@6..8 ")" [] [Whitespace(" ")]
        3: COLON@8..10 ":" [] [Whitespace(" ")]
        4: JS_ARROW_FUNCTION_EXPRESSION@10..17
          0: (empty)
          1: (empty)
          2: JS_IDENTIFIER_BINDING@10..12
            0: IDENT@10..12 "a" [] [Whitespace(" ")]
          3: (empty)
          4: FAT_ARROW@12..15 "=>" [] [Whitespace(" ")]
          5: JS_FUNCTION_BODY@15..17
            0: L_CURLY@15..16 "{" [] []
            1: JS_DIRECTIVE_LIST@16..16
            2: JS_STATEMENT_LIST@16..16
            3: R_CURLY@16..17 "}" [] []
      1: SEMICOLON@17..18 ";" [] []
  4: EOF@18..19 "" [Newline("\n")] []