code: def create(self, name, metadata=None, prefix=None, *args, **kwargs):
          
          uri = "/%s" % name
          headers = {}
          if prefix is None:
              prefix = CONTAINER_META_PREFIX
          if metadata:
              metadata = _massage_metakeys(metadata, prefix)
              headers = metadata
          resp, resp_body = self.api.method_put(uri, headers=headers)
          if resp.status_code in (201, 202):
              hresp, hresp_body = self.api.method_head(uri)
              num_obj = int(hresp.headers.get("x-container-object-count", "0"))
              num_bytes = int(hresp.headers.get("x-container-bytes-used", "0"))
              cont_info = {"name": name, "object_count": num_obj,
                      "total_bytes": num_bytes}
              return Container(self, cont_info)
          elif resp.status_code == 400:
              raise exc.ClientException("Container creation failed: %s" %
                      resp_body)
docs: Creates a new container, and returns a Container object that represents
          that contianer. If a container by the same name already exists, no
          exception is raised; instead, a reference to that existing container is
          returned.