@Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(gidNumber);
        sb.append(dm).append(name);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

        final StringBuilder buf = new StringBuilder(256);
        buf.append(cause.getMessage()).append(" : [");
        SQLException next = cause.getNextException();
        while (next != null) {
            buf.append(MessageFormatter.getSimpleMessage("ECL0071", next.getMessage(), Integer.toString(next.getErrorCode()),
                    next.getSQLState())).append("], [");
            next = next.getNextException();
        }

      logger.log(
        buildString {
          append("<-- ${response.code}")
          if (response.message.isNotEmpty()) append(" ${response.message}")
          append(" ${redactUrl(response.request.url)} (${tookMs}ms")
          if (!logHeaders) append(", $bodySize body")
          append(")")
        },
      )

      if (logHeaders) {
        val headers = response.headers

## Usar la instance como una dependencia

Luego, podríamos usar este `checker` en un `Depends(checker)`, en lugar de `Depends(FixedContentQueryChecker)`, porque la dependencia es la instance, `checker`, no la clase en sí.

Y al resolver la dependencia, **FastAPI** llamará a este `checker` así:

```Python
checker(q="somequery")

        StringBuilder sb = new StringBuilder();
        sb.append(getClass().getSimpleName());
        sb.append("[code=").append(errorCode);
        sb.append(", severity=").append(severity);
        sb.append(", category=").append(category);
        sb.append(", message=").append(getMessage());

        if (recoveryHint != null) {
            sb.append(", hint=").append(recoveryHint);
        }

        break;
      }
      builder.append(template.substring(templateStart, placeholderStart));
      builder.append(args[i++]);
      templateStart = placeholderStart + 2;
    }
    builder.append(template.substring(templateStart));

    // if we run out of placeholders, append the extra args in square braces
    if (i < args.length) {
      builder.append(" [");
      builder.append(args[i++]);
      while (i < args.length) {

        final StringBuilder buf = new StringBuilder(100);
        for (final Object arg : methodArgs) {
            if (arg != null) {
                buf.append(arg.getClass().getName());
            } else {
                buf.append("null");
            }
            buf.append(", ");
        }
        buf.setLength(buf.length() - 2);
        return new String(buf);
    }

        buf.append("12345ABCDE");
        request.setParameter("userCode", buf.toString());
        assertNotNull(userInfoHelper.getUserCodeFromRequest(request));
        buf.append("12345ABCDE");
        request.setParameter("userCode", buf.toString());
        assertNotNull(userInfoHelper.getUserCodeFromRequest(request));
        buf.append("12345ABCDE");

    buildString(32) {
      append("Request{method=")
      append(method)
      append(", url=")
      append(url)
      if (headers.size != 0) {
        append(", headers=[")
        headers.forEachIndexed { index, (name, value) ->
          if (index > 0) {
            append(", ")
          }
          append(name)
          append(':')
          append(if (isSensitiveHeader(name)) "██" else value)

	o = append(o, 0xa8, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x73)
	o = msgp.AppendBytes(o, z.Versions)
	// string "SetIndex"
	o = append(o, 0xa8, 0x53, 0x65, 0x74, 0x49, 0x6e, 0x64, 0x65, 0x78)
	o = msgp.AppendInt(o, z.SetIndex)
	// string "PoolIndex"
	o = append(o, 0xa9, 0x50, 0x6f, 0x6f, 0x6c, 0x49, 0x6e, 0x64, 0x65, 0x78)
	o = msgp.AppendInt(o, z.PoolIndex)
	// string "Queued"