PyFile:ParamSpecTypeParameterDefaultInClassDeclaration.py
  PyClass: Baz
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    PyTypeParameterList
      PsiElement(Py:LBRACKET)('[')
      PyTypeParameter
        PsiElement(Py:EXP)('**')
        PsiElement(Py:IDENTIFIER)('P')
        PsiWhiteSpace(' ')
        PsiElement(Py:EQ)('=')
        PsiWhiteSpace(' ')
        PyListLiteralExpression
          PsiElement(Py:LBRACKET)('[')
          PyReferenceExpression: int
            PsiElement(Py:IDENTIFIER)('int')
          PsiElement(Py:COMMA)(',')
          PsiWhiteSpace(' ')
          PyReferenceExpression: str
            PsiElement(Py:IDENTIFIER)('str')
          PsiElement(Py:RBRACKET)(']')
      PsiElement(Py:RBRACKET)(']')
    PyArgumentList
      <empty list>
    PsiElement(Py:COLON)(':')
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    PyStatementList
      PyExpressionStatement
        PyEllipsisLiteralExpression
          PsiElement(Py:DOT)('.')
          PsiElement(Py:DOT)('.')
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