code: def describe_keypairs(self, *keypair_names):
          
          keypairs = {}
          for index, keypair_name in enumerate(keypair_names):
              keypairs["KeyName.%d" % (index + 1)] = keypair_name
          query = self.query_factory(
              action="DescribeKeyPairs", creds=self.creds,
              endpoint=self.endpoint, other_params=keypairs)
          d = query.submit()
          return d.addCallback(self.parser.describe_keypairs)
docs: Returns information about key pairs available.