SHELL_SCRIPT
  COMMANDS_LIST
    SIMPLE_COMMAND
      GENERIC_COMMAND_DIRECTIVE
        LITERAL
          PsiElement(word)('export')
      PsiWhiteSpace(' ')
      SIMPLE_COMMAND_ELEMENT
        ASSIGNMENT_COMMAND
          LITERAL
            PsiElement(word)('a')
          PsiElement(=)('=')
          NUMBER
            PsiElement(int)('1')
  PsiElement(\n)('\n')
  COMMANDS_LIST
    SIMPLE_COMMAND
      GENERIC_COMMAND_DIRECTIVE
        LITERAL
          PsiElement(word)('export')
      PsiWhiteSpace(' ')
      LITERAL
        PsiElement(word)('a')
  PsiElement(\n)('\n')
  COMMANDS_LIST
    SIMPLE_COMMAND
      GENERIC_COMMAND_DIRECTIVE
        LITERAL
          PsiElement(word)('export')
      PsiWhiteSpace(' ')
      SIMPLE_COMMAND_ELEMENT
        ASSIGNMENT_COMMAND
          LITERAL
            PsiElement(word)('a')
          PsiElement(=)('=')
          NUMBER
            PsiElement(int)('1')
      PsiWhiteSpace(' ')
      SIMPLE_COMMAND_ELEMENT
        ASSIGNMENT_COMMAND
          LITERAL
            PsiElement(word)('b')
          PsiElement(=)('=')
          NUMBER
            PsiElement(int)('2')