PyFile:DictLiteral.py
  PyExpressionStatement
    PyDictLiteralExpression
      PsiElement(Py:LBRACE)('{')
      PyKeyValueExpression
        PyStringLiteralExpression: a
          PsiElement(Py:SINGLE_QUOTED_STRING)(''a'')
        PsiElement(Py:COLON)(':')
        PsiWhiteSpace(' ')
        PyNumericLiteralExpression
          PsiElement(Py:INTEGER_LITERAL)('1')
      PsiElement(Py:COMMA)(',')
      PsiWhiteSpace(' ')
      PyKeyValueExpression
        PyStringLiteralExpression: b
          PsiElement(Py:SINGLE_QUOTED_STRING)(''b'')
        PsiElement(Py:COLON)(':')
        PsiWhiteSpace(' ')
        PyNumericLiteralExpression
          PsiElement(Py:INTEGER_LITERAL)('2')
      PsiElement(Py:RBRACE)('}')