*
 * ### Android Cleartext Permit Detection
 *
 * Supported on Android 6.0+ via `NetworkSecurityPolicy`.
 */
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(

      if (cmp > 0 || (cmp == 0 && other.getUpperBoundType() == OPEN)) {
        upEnd = other.getUpperEndpoint();
        upType = other.getUpperBoundType();
      }
    }

    if (hasLowBound && hasUpBound) {
      int cmp = comparator.compare(lowEnd, upEnd);
      if (cmp > 0 || (cmp == 0 && lowType == OPEN && upType == OPEN)) {
        // force allowed empty range
        lowEnd = upEnd;

        Range.open(0, 4),
        ContiguousSet.create(Range.closedOpen(1, 4), integers()).range(OPEN, OPEN));
    assertEquals(
        Range.open(0, 4), ContiguousSet.create(Range.open(0, 4), integers()).range(OPEN, OPEN));
    assertEquals(
        Range.open(0, 4),
        ContiguousSet.create(Range.openClosed(0, 3), integers()).range(OPEN, OPEN));

    assertEquals(
        Range.closedOpen(1, 4),

        Range.open(0, 4),
        ContiguousSet.create(Range.closedOpen(1, 4), integers()).range(OPEN, OPEN));
    assertEquals(
        Range.open(0, 4), ContiguousSet.create(Range.open(0, 4), integers()).range(OPEN, OPEN));
    assertEquals(
        Range.open(0, 4),
        ContiguousSet.create(Range.openClosed(0, 3), integers()).range(OPEN, OPEN));

    assertEquals(
        Range.closedOpen(1, 4),

   * messages.
   */
  open fun onOpen(
    webSocket: WebSocket,
    response: Response,
  ) {
  }

  /** Invoked when a text (type `0x1`) message has been received. */
  open fun onMessage(
    webSocket: WebSocket,
    text: String,
  ) {
  }

  /** Invoked when a binary (type `0x2`) message has been received. */
  open fun onMessage(
    webSocket: WebSocket,

                    // fail if already exists
                    this.openFunction = OPEN_FN_CREATE | OPEN_FN_FAIL_IF_EXISTS;
                }
                else {
                    this.openFunction = OPEN_FN_CREATE | OPEN_FN_OPEN;
                }
            }
            else {
                this.openFunction = OPEN_FN_OPEN;
            }
        }
    }


    @Override

                    // fail if already exists
                    openFunction = OPEN_FN_CREATE | OPEN_FN_FAIL_IF_EXISTS;
                } else {
                    openFunction = OPEN_FN_CREATE | OPEN_FN_OPEN;
                }
            } else {
                openFunction = OPEN_FN_OPEN;
            }
        }
    }

    int getBatchLimit( byte command ) {

    expectAddFailure(sortedMultiset.tailMultiset(b.getElement(), OPEN), b);
    expectAddFailure(sortedMultiset.tailMultiset(c.getElement(), CLOSED), a);
    expectAddFailure(sortedMultiset.tailMultiset(c.getElement(), CLOSED), b);
    expectAddFailure(sortedMultiset.tailMultiset(c.getElement(), OPEN), a);
    expectAddFailure(sortedMultiset.tailMultiset(c.getElement(), OPEN), b);

      for (int j = i; j <= MAX_BOUND; j++) {
        for (BoundType lowerType : BoundType.values()) {
          for (BoundType upperType : BoundType.values()) {
            if (i == j & lowerType == OPEN & upperType == OPEN) {
              continue;
            }
            builder.add(Range.range(i, lowerType, j, upperType));
          }
        }
      }
    }
    RANGES = builder.build();
  }

     * cache-control headers.
     */
    open fun cacheControl(cacheControl: CacheControl): Builder = commonCacheControl(cacheControl)

    open fun get(): Builder = commonGet()

    open fun head(): Builder = commonHead()

    open fun post(body: RequestBody): Builder = commonPost(body)

    @JvmOverloads
    open fun delete(body: RequestBody? = commonEmptyRequestBody): Builder = commonDelete(body)