if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		defer gr.Close()
		rc, err = file.Open(gr)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
	} else {
		rc = io.NopCloser(bytes.NewReader([]byte{}))
	}

	defer rc.Close()

	if err = setObjectHeaders(ctx, w, fileObjInfo, nil, opts); err != nil {

Puedes notar que para crear una instance de una clase en Python, utilizas esa misma sintaxis.

Por ejemplo:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

En este caso, `fluffy` es una instance de la clase `Cat`.

Y para crear `fluffy`, estás "llamando" a `Cat`.

Entonces, una clase en Python también es un **callable**.

 * `server_max_window_bits`. This harms our ability to support these parameters:
 *
 *  * If `client_max_window_bits` is less than 15, OkHttp must close the web socket with code 1010.
 *    Otherwise it would compress values in a way that servers could not decompress.
 *  * If `server_max_window_bits` is less than 15, OkHttp will waste memory on an oversized buffer.
 *

        }
    }

    /**
     * LSA close handle message.
     */
    public static class LsarClose extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x00;
        }

        /** Return value from the RPC call. */
        public int retval;
        /** Policy handle to be closed. */
        public rpc.policy_handle handle;

        }

        @Test
        @DisplayName("Should handle close operation")
        void testClose() throws IOException {
            // When: Closing handle
            handle.close();

            // Then: Should complete without errors
            assertDoesNotThrow(() -> handle.close());
        }

        @Test
        @DisplayName("Should return string representation")

	public final fun clearHeaders ()Lmockwebserver3/MockResponse$Builder;
	public synthetic fun clone ()Ljava/lang/Object;
	public fun clone ()Lmockwebserver3/MockResponse$Builder;
	public final fun code (I)Lmockwebserver3/MockResponse$Builder;
	public final fun doNotReadRequestBody ()Lmockwebserver3/MockResponse$Builder;

                                                        </h4>
                                                        <button type="button" class="close" data-dismiss="modal"
                                                                aria-label="Close">
                                                            <span aria-hidden="true">×</span>
                                                        </button>

    stream = http2Connection.newStream(requestHeaders, hasRequestBody)
    // We may have been asked to cancel while creating the new stream and sending the request
    // headers, but there was still no stream to close.
    if (canceled) {
      stream!!.closeLater(ErrorCode.CANCEL)
      throw IOException("Canceled")
    }
    stream!!.readTimeout().timeout(chain.readTimeoutMillis.toLong(), TimeUnit.MILLISECONDS)

          println("failed: $e")
        }

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          println("response: ${response.code}")
          response.close()
        }
      },
    )
  }

      | * WebSocketListener
      |(It is safe to call contentType() and contentLength() on these response bodies.)
      """.trimMargin(),
    )

  override fun timeout() = Timeout.NONE

  override fun close() {
  }
}

fun Response.stripBody(): Response =
  newBuilder()
    .body(UnreadableResponseBody(body.contentType(), body.contentLength()))