PyFile:MissingListSeparators.py
  PyAssignmentStatement
    PyTargetExpression: a
      PsiElement(Py:IDENTIFIER)('a')
    PsiWhiteSpace(' ')
    PsiElement(Py:EQ)('=')
    PsiWhiteSpace(' ')
    PyListLiteralExpression
      PsiElement(Py:LBRACKET)('[')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('1')
      PsiErrorElement:']' or ',' expected
        <empty list>
      PsiWhiteSpace(' ')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('2')
      PsiErrorElement:']' or ',' expected
        <empty list>
      PsiWhiteSpace(' ')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('3')
      PsiElement(Py:RBRACKET)(']')