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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 add_developer_certificate(self, name, **kwargs):
 """Add a new developer certificate. :param str name: name of the certificate (Required) :param str description: Human readable description of this certificate, not longer than 500 characters. :returns: Certificate object :rtype: Certificate """

        kwargs['name'] = name
        api = self._get_api(cert.DeveloperCertificateApi)
        certificate = Certificate._create_request_map(kwargs)

        # just pull the fields we care about
        subset = cert.DeveloperCertificateRequestData.attribute_map
        certificate = {k: v for k, v in certificate.items() if k in subset}

        body = cert.DeveloperCertificateRequestData(**certificate)
        dev_cert = api.create_developer_certificate(self.auth, body)
        return self.get_certificate(dev_cert.id)