It's a very simple program.

But now imagine that you were writing it from scratch.

At some point you would have started the definition of the function, you had the parameters ready...

But then you have to call "that method that converts the first letter to upper case".

Was it `upper`? Was it `uppercase`? `first_uppercase`? `capitalize`?

Then, you try with the old programmer's friend, editor autocompletion.

}

// WithRetries sets the retry count for all function calls from the Go method.
func (g *NotificationGroup) WithRetries(retryCount int) *NotificationGroup {
	if g != nil {
		g.retryCount = retryCount
	}
	return g
}

// Wait blocks until all function calls from the Go method have returned, then
// returns the slice of errors from all function calls.

			if len(etag) >= 32 && strings.Count(etag, "-") != 1 {
				etag = etag[len(etag)-32:]
			}
		}
	}

	// We must not use the http.Header().Set method here because some (broken)
	// clients expect the ETag header key to be literally "ETag" - not "Etag" (case-sensitive).
	// Therefore, we have to set the ETag directly as map entry.

    String leading = ",a,b,c";
    Iterable<String> letters = Splitter.onPattern(",").split(leading);
    assertThat(letters).containsExactly("", "a", "b", "c").inOrder();
  }

  // TODO(kevinb): the name of this method suggests it might not actually be testing what it
  // intends to be testing?
  @GwtIncompatible // Splitter.onPattern
  public void testPatternSplitWithMultipleLetters() {
    Iterable<String> testPatterningMotto =

 * </p>
 *
 * <pre>
 * import static org.codelibs.core.beans.util.CopyOptionsUtil.*;
 *
 * copyBeanToBean(srcBean, destBean, excludeNull());
 * </pre>
 * <p>
 * Multiple options can also be specified using method chaining.
 * </p>
 *
 * <pre>
 * copyBeanToBean(srcBean, destBean, excludeNull().dateConverter("date", "MM/dd"));
 * </pre>
 *
 * @author Kimura Satoshi
 * @author higa
 * @author shinsuke

Você poderia criar uma classe `CustomORJSONResponse`. A principal coisa a ser feita é sobrecarregar o método render da classe Response, `Response.render(content)`, que retorna o conteúdo em bytes, para retornar o conteúdo que você deseja:

{* ../../docs_src/custom_response/tutorial009c.py hl[9:14,17] *}

Agora em vez de retornar:

		name:    name,
		size:    int64(len(data)),
		mode:    fileMode,
		modTime: UTCNow(),
		isDir:   false,
		sys:     nil,
	})
	if zerr != nil {
		return zerr
	}
	header.Method = zip.Deflate
	zwriter, zerr := zipWriter.CreateHeader(header)
	if zerr != nil {
		return zerr
	}
	_, err := io.Copy(zwriter, bytes.NewReader(data))
	return err
}

             * "NBSS Continuation Message" frame according to WireShark
             */
            out.write(BUF, 0, 4 + n);
        }
    }

    /**
     * Internal method to send a request to the server.
     *
     * @param request the request to send
     * @throws IOException if an I/O error occurs
     */
    protected void doSend0(final Request request) throws IOException {

        byte[] encodeBuffer = new byte[1024];
        NdrBuffer dst = new NdrBuffer(encodeBuffer, 0);
        enumEx.encode_in(dst);

        // Simulate decode_out
        // The decode_out method expects the info and totalentries to be already initialized
        // and will decode into them.
        netdfs.DfsEnumStruct decodedInfo = new netdfs.DfsEnumStruct();
        NdrLong decodedTotalEntries = new NdrLong(0);

Es un programa muy simple.

Pero ahora imagina que lo escribieras desde cero.

En algún momento habrías empezado la definición de la función, tenías los parámetros listos...

Pero luego tienes que llamar "ese método que convierte la primera letra a mayúscula".

¿Era `upper`? ¿Era `uppercase`? `first_uppercase`? `capitalize`?

Entonces, pruebas con el amigo del viejo programador, el autocompletado del editor.