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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def validate(self, data, many=None, partial=None):
 """Validate `data` against the schema, returning a dictionary of validation errors. :param dict data: The data to validate. :param bool many: Whether to validate `data` as a collection. If `None`, the value for `self.many` is used. :param bool|tuple partial: Whether to ignore missing fields and not require any fields declared. Propagates down to ``Nested`` fields as well. If its value is an iterable, only missing fields listed in that iterable will be ignored. Use dot delimiters to specify nested fields. :return: A dictionary of validation errors. :rtype: dict .. versionadded:: 1.1.0 """

        try:
            self._do_load(data, many, partial=partial, postprocess=False)
        except ValidationError as exc:
            return exc.messages
        return {}