PyFile:SingleClassBeforeFunction.py
  PyClass: null
    PsiElement(Py:CLASS_KEYWORD)('class')
    PsiErrorElement:Identifier expected
      <empty list>
    PyArgumentList
      <empty list>
    PsiErrorElement:Colon expected
      <empty list>
    PsiWhiteSpace('\n\n\n')
    PyStatementList
      PsiErrorElement:Indent expected
        <empty list>
  PyFunction('foo')
    PsiElement(Py:DEF_KEYWORD)('def')
    PsiWhiteSpace(' ')
    PsiElement(Py:IDENTIFIER)('foo')
    PyParameterList
      PsiElement(Py:LPAR)('(')
      PsiElement(Py:RPAR)(')')
    PsiElement(Py:COLON)(':')
    PsiWhiteSpace('\n    ')
    PyStatementList
      PyPassStatement
        PsiElement(Py:PASS_KEYWORD)('pass')