PyFile:TupleAsDictKey.py
  PyExpressionStatement
    PySubscriptionExpression
      PyDictLiteralExpression
        PsiElement(Py:LBRACE)('{')
        PsiElement(Py:RBRACE)('}')
      PsiElement(Py:LBRACKET)('[')
      PyTupleExpression
        PyNumericLiteralExpression
          PsiElement(Py:INTEGER_LITERAL)('1')
        PsiElement(Py:COMMA)(',')
        PyNumericLiteralExpression
          PsiElement(Py:INTEGER_LITERAL)('2')
        PsiElement(Py:COMMA)(',')
        PyNumericLiteralExpression
          PsiElement(Py:INTEGER_LITERAL)('3')
      PsiElement(Py:RBRACKET)(']')