*/
open class Platform {
  /** Prefix used on custom headers. */
  fun getPrefix() = "OkHttp"

  open fun newSSLContext(): SSLContext = SSLContext.getInstance("TLS")

  open fun platformTrustManager(): X509TrustManager {
    val factory =
      TrustManagerFactory.getInstance(
        TrustManagerFactory.getDefaultAlgorithm(),
      )
    factory.init(null as KeyStore?)
    val trustManagers = factory.trustManagers!!

   * certificates.
   */
  private SSLSocketFactory defaultSslSocketFactory(X509TrustManager trustManager)
      throws NoSuchAlgorithmException, KeyManagementException {
    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(null, new TrustManager[] { trustManager }, null);

    return sslContext.getSocketFactory();
  }

  /** Returns a trust manager that trusts the VM's default certificate authorities. */

  private final Map<TypeToken<? extends @NonNull B>, B> backingMap = new HashMap<>();

  @Override
  public <T extends @NonNull B> @Nullable T getInstance(Class<T> type) {
    return trustedGet(TypeToken.of(type));
  }

  @Override
  public <T extends @NonNull B> @Nullable T getInstance(TypeToken<T> type) {
    return trustedGet(type.rejectTypeVariables());
  }

  @Override
  @CanIgnoreReturnValue

    //                                                                             =======
    @Override
    public BoostDocumentRuleDbm asDBMeta() {
        return BoostDocumentRuleDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "boost_document_rule";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;

    //                                                                             =======
    @Override
    public FileAuthenticationDbm asDBMeta() {
        return FileAuthenticationDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "file_authentication";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;

    //                                                                             =======
    @Override
    public KeyMatchDbm asDBMeta() {
        return KeyMatchDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "key_match";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    //                                                                             =======
    @Override
    public LabelTypeDbm asDBMeta() {
        return LabelTypeDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "label_type";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    //                                                                             =======
    @Override
    public RequestHeaderDbm asDBMeta() {
        return RequestHeaderDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "request_header";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;

    //                                                                             =======
    @Override
    public RoleTypeDbm asDBMeta() {
        return RoleTypeDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "role_type";
    }

    // ===================================================================================

    ```kotlin
      private val client: OkHttpClient

      init {
        val trustManager = trustManagerForCertificates(trustedCertificatesInputStream())
        val sslContext = SSLContext.getInstance("TLS")
        sslContext.init(null, arrayOf<TrustManager>(trustManager), null)
        val sslSocketFactory = sslContext.socketFactory

        client = OkHttpClient.Builder()