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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_definitions(self, definitions, field):
 """ Validate a field's value against its defined rules. """


        def validate_rule(rule):
            validator = self.__get_rule_handler('validate', rule)
            return validator(definitions.get(rule, None), field, value)

        definitions = self._resolve_rules_set(definitions)
        value = self.document[field]

        rules_queue = [
            x
            for x in self.priority_validations
            if x in definitions or x in self.mandatory_validations
        ]
        rules_queue.extend(
            x for x in self.mandatory_validations if x not in rules_queue
        )
        rules_queue.extend(
            x
            for x in definitions
            if x not in rules_queue
            and x not in self.normalization_rules
            and x not in ('allow_unknown', 'require_all', 'meta', 'required')
        )
        self._remaining_rules = rules_queue

        while self._remaining_rules:
            rule = self._remaining_rules.pop(0)
            try:
                result = validate_rule(rule)
                # TODO remove on next breaking release
                if result:
                    break
            except _SchemaRuleTypeError:
                break

        self._drop_remaining_rules()