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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):
 """Validate this object as Image API data. Raise IIIFInfoError with helpful message if not valid. """

        errors = []
        for param in self.required_params:
            if (not hasattr(self, param) or getattr(self, param) is None):
                errors.append("missing %s parameter" % (param))
        if (len(errors) > 0):
            raise IIIFInfoError("Bad data for info.json: " + ", ".join(errors))
        return True