PyFile:SetLiteral.py
  PyExpressionStatement
    PySetLiteralExpression
      PsiElement(Py:LBRACE)('{')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('1')
      PsiElement(Py:COMMA)(',')
      PsiWhiteSpace(' ')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('2')
      PsiElement(Py:RBRACE)('}')
  PsiWhiteSpace('\n')
  PyExpressionStatement
    PySetLiteralExpression
      PsiElement(Py:LBRACE)('{')
      PyNumericLiteralExpression
        PsiElement(Py:INTEGER_LITERAL)('1')
      PsiElement(Py:RBRACE)('}')