code: def maximumCanEqual(self):
          
          if self.maximum is None:
              raise SchemaError("maximumCanEqual requires presence of maximum")
          value = self._schema.get("maximumCanEqual", True)
          if value is not True and value is not False:
              raise SchemaError(
                  "maximumCanEqual value {0!r} is not a boolean".format(
                      value))
          return value
docs: Flag indicating if the minimum value is inclusive or exclusive.