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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 to_model(self):
 """Return a bravado-core Error instance"""

        e = ApiPool().current_server_api.model.Error(
            status=self.status,
            error=self.code.upper(),
            error_description=str(self),
        )
        if self.error_id:
            e.error_id = self.error_id
        if self.user_message:
            e.user_message = self.user_message
        if self.error_caught:
            e.error_caught = pformat(self.error_caught)
        return e