}

    private static final long serialVersionUID = 1;
  }

  /**
   * Returns a serializable converter object that converts between strings and doubles using {@link
   * Double#valueOf} and {@link Double#toString()}.
   *
   * @since 16.0
   */
  public static Converter<String, Double> stringConverter() {
    return DoubleConverter.INSTANCE;
  }

  /**

      return INSTANCE;
    }

    private static final long serialVersionUID = 1;
  }

  /**
   * Returns a serializable converter object that converts between strings and integers using {@link
   * Integer#decode} and {@link Integer#toString()}. The returned converter throws {@link
   * NumberFormatException} if the input string is invalid.
   *

import com.squareup.moshi.Moshi
import okhttp3.Call
import okhttp3.OkHttpClient
import okhttp3.survey.types.Client
import okhttp3.survey.types.SuiteId
import retrofit2.Retrofit
import retrofit2.converter.moshi.MoshiConverterFactory

class SslLabsScraper(
  private val callFactory: Call.Factory,
) {
  private val moshi = Moshi.Builder().build()

  private val moshiConverterFactory = MoshiConverterFactory.create(moshi)

 * ListenableFuture} directly.
 *
 * <p>For interoperability between {@code ListenableFuture} and <b>{@code CompletableFuture}</b>,
 * consider <a href="https://github.com/lukas-krecan/future-converter">Future Converter</a>.
 *
 * @author Sven Mawson
 * @since 10.0 (replacing {@code Futures.makeListenable}, which existed in 1.0)
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

        printDiagnosticConverter(diagnosticList)
    }

    private fun SmartPrinter.printDiagnosticConverter(diagnosticList: HLDiagnosticList) {
        inBracketsWithIndent("internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConverter") {
            for (diagnostic in diagnosticList.diagnostics) {
                printConverter(diagnostic)
            }
        }
    }

import com.squareup.moshi.Moshi
import okhttp3.Call
import okhttp3.OkHttpClient
import okhttp3.survey.types.Client
import okhttp3.survey.types.SuiteId
import retrofit2.Retrofit
import retrofit2.converter.moshi.MoshiConverterFactory

class SslLabsClient(
  callFactory: Call.Factory,
) {
  private val moshi = Moshi.Builder().build()

  private val moshiConverterFactory = MoshiConverterFactory.create(moshi)

 *   <li>{@link Ascii}
 *   <li>{@link CaseFormat}
 *   <li>{@link CharMatcher}
 *   <li>{@link Splitter}
 *   <li>{@link Strings}
 * </ul>
 *
 * <h3>Function types</h3>
 *
 * <ul>
 *   <li>{@link Converter}
 *   <li>{@link Equivalence}
 * </ul>
 *
 * <h3>Other</h3>
 *
 * <ul>
 *   <li>{@link Enums}
 *   <li>{@link MoreObjects}
 *   <li>{@link Preconditions}
 *   <li>{@link StandardSystemProperty}

 *   <li>{@link Ascii}
 *   <li>{@link CaseFormat}
 *   <li>{@link CharMatcher}
 *   <li>{@link Splitter}
 *   <li>{@link Strings}
 * </ul>
 *
 * <h3>Function types</h3>
 *
 * <ul>
 *   <li>{@link Converter}
 *   <li>{@link Equivalence}
 * </ul>
 *
 * <h3>Other</h3>
 *
 * <ul>
 *   <li>{@link Enums}
 *   <li>{@link MoreObjects}
 *   <li>{@link Preconditions}
 *   <li>{@link StandardSystemProperty}

principais recursos necessários em sistemas API é "<abbr title="também chamado _ marshalling, conversão">serialização</abbr>" de dados, que é pegar dados do código (Python) e converter eles em alguma coisa que possa ser enviado através da rede. Por exemplo, converter um objeto contendo dados de um banco de dados em um objeto JSON. Converter objetos `datetime` em strings etc.

Outro grande recurso necessário nas APIs é validação de dados, certificando que os dados são válidos, dados certos parâmetros....

    @SuppressWarnings("unused") // called by NullPointerTester
    public void checkArray(Converter<String, Integer> c, String s) {
      calledWith(c, s);
    }

    void check() {
      runTester();
      @SuppressWarnings("unchecked") // We are checking it anyway
      Converter<String, Integer> defaultConverter =
          (Converter<String, Integer>) getDefaultParameterValue(0);