config.Lock()
	delete(config.Tiers, tier)
	delete(config.drivercache, tier)
	config.Unlock()
	return nil
}

// Verify verifies if tier's config is valid by performing all supported
// operations on the corresponding warmbackend.
func (config *TierConfigMgr) Verify(ctx context.Context, tier string) error {
	d, err := config.getDriver(ctx, tier)
	if err != nil {
		return err
	}
	return checkWarmBackend(ctx, d)
}

func (c ChecksumType) CanMerge() bool {
	return c.Is(ChecksumCRC64NVME) || c.Is(ChecksumCRC32C) || c.Is(ChecksumCRC32)
}

// Hasher returns a hasher corresponding to the checksum type.
// Returns nil if no checksum.
func (c ChecksumType) Hasher() hash.Hash {
	switch {
	case c.Is(ChecksumCRC32):
		return crc32.NewIEEE()
	case c.Is(ChecksumCRC32C):

  /**
   * Returns an {@link Inet4Address}, given a byte array representation of the IPv4 address.
   *
   * @param bytes byte array representing an IPv4 address (should be of length 4)
   * @return {@link Inet4Address} corresponding to the supplied byte array
   * @throws IllegalArgumentException if a valid {@link Inet4Address} can not be created
   */
  private static Inet4Address getInet4Address(byte[] bytes) {
    checkArgument(

   *     unwrapping conversion for primitive arguments fails; or if, after possible unwrapping, a
   *     parameter value cannot be converted to the corresponding formal parameter type by a method
   *     invocation conversion.
   * @throws InvocationTargetException if the underlying method or constructor throws an exception.
   */

         * other specified dependency, will be subject to dependency collection/resolution, i.e. should have an artifact
         * descriptor and a corresponding artifact file. The root artifact on the other hand is only used
         * as a label for the root node of the graph in case no root dependency was specified. As such, the configured

      assertThat(responseBody.readUtf8Line()).isNull()
    }
    body.awaitSuccess()
  }

  /**
   * OkHttp currently doesn't implement failing the request body stream independently of failing the
   * corresponding response body stream. This is necessary if we want servers to be able to stop
   * inbound data and send an early 400 before the request body completes.
   *

// via reflection.
//
// When **no** flags are passed, the behavior is to trace both headers and body,
// gzip the response and throttle the handler via `maxClients`. Each of these
// can be disabled via the corresponding `s3HFlag`.
//
// CAUTION: for requests involving large req/resp bodies ensure to pass the
// `traceHdrsS3HFlag`, otherwise both headers and body will be traced, causing
// high memory usage!

	}

	ep.argPatterns = argPatterns

	return ep, nil
}

// GetAllSets - parses all ellipses input arguments, expands them into
// corresponding list of endpoints chunked evenly in accordance with a
// specific set size.
// For example: {1...64} is divided into 4 sets each of size 16.
// This applies to even distributed setup syntax as well.

	} else {
		tx.Statement.Omits = columns
	}
	return
}

// MapColumns modify the column names in the query results to facilitate align to the corresponding structural fields
func (db *DB) MapColumns(m map[string]string) (tx *DB) {
	tx = db.getInstance()
	tx.Statement.ColumnMapping = m
	return
}

// Where add conditions
//

    * Make sure you add your link to the start of the corresponding section.
* To help [translate the documentation](contributing.md#translations){.internal-link target=_blank} to your language.
    * You can also help to review the translations created by others.