     return nil
   }
 
-  /// Gets the trailing metadata that was received
+  /// Gets trailing metadata that was received
   ///
   /// - Returns: metadata
   internal func receivedTrailingMetadata() -> Metadata? {

    return nil
  }

  /// Gets the initial metadata that was received
  ///
  /// - Returns: metadata
  internal func receivedInitialMetadata() -> Metadata? {

    return nil
  }

  /// Gets a status code that was received
  ///
  /// - Returns: status code
  internal func receivedStatusCode() -> Int? {
