KtFile: 2.20.kt
  PACKAGE_DIRECTIVE
    <empty list>
  IMPORT_LIST
    <empty list>
  FUN
    PsiElement(fun)('fun')
    PsiWhiteSpace(' ')
    PsiElement(IDENTIFIER)('f')
    VALUE_PARAMETER_LIST
      PsiElement(LPAR)('(')
      PsiElement(RPAR)(')')
    PsiWhiteSpace(' ')
    BLOCK
      PsiElement(LBRACE)('{')
      PsiWhiteSpace('\n    ')
      BINARY_EXPRESSION
        BINARY_EXPRESSION
          INTEGER_CONSTANT
            PsiElement(INTEGER_LITERAL)('1')
          PsiWhiteSpace(' ')
          OPERATION_REFERENCE
            PsiElement(PLUS)('+')
          PsiWhiteSpace(' ')
          INTEGER_CONSTANT
            PsiElement(INTEGER_LITERAL)('1')
        PsiWhiteSpace(' ')
        OPERATION_REFERENCE
          PsiElement(IDENTIFIER)('`true`')
        PsiWhiteSpace(' ')
        BINARY_EXPRESSION
          INTEGER_CONSTANT
            PsiElement(INTEGER_LITERAL)('10')
          OPERATION_REFERENCE
            PsiElement(RANGE)('..')
          INTEGER_CONSTANT
            PsiElement(INTEGER_LITERAL)('11')
      PsiWhiteSpace('\n\n    ')
      BINARY_EXPRESSION
        BINARY_EXPRESSION
          BINARY_EXPRESSION
            BINARY_EXPRESSION
              INTEGER_CONSTANT
                PsiElement(INTEGER_LITERAL)('1')
              PsiWhiteSpace(' ')
              OPERATION_REFERENCE
                PsiElement(PLUS)('+')
              PsiWhiteSpace(' ')
              INTEGER_CONSTANT
                PsiElement(INTEGER_LITERAL)('1')
            PsiWhiteSpace(' ')
            OPERATION_REFERENCE
              PsiElement(IDENTIFIER)('`false`')
            PsiWhiteSpace(' ')
            BINARY_EXPRESSION
              INTEGER_CONSTANT
                PsiElement(INTEGER_LITERAL)('10')
              OPERATION_REFERENCE
                PsiElement(RANGE)('..')
              INTEGER_CONSTANT
                PsiElement(INTEGER_LITERAL)('11')
          PsiWhiteSpace(' ')
          OPERATION_REFERENCE
            PsiElement(IDENTIFIER)('`true`')
          PsiWhiteSpace(' ')
          INTEGER_CONSTANT
            PsiElement(INTEGER_LITERAL)('10')
        PsiWhiteSpace(' ')
        OPERATION_REFERENCE
          PsiElement(IDENTIFIER)('`false`')
        PsiWhiteSpace(' ')
        BINARY_EXPRESSION
          PREFIX_EXPRESSION
            OPERATION_REFERENCE
              PsiElement(MINUS)('-')
            FLOAT_CONSTANT
              PsiElement(FLOAT_CONSTANT)('.9')
          OPERATION_REFERENCE
            PsiElement(MINUS)('-')
          FLOAT_CONSTANT
            PsiElement(FLOAT_CONSTANT)('9.0')
      PsiWhiteSpace('\n')
      PsiElement(RBRACE)('}')