findMatchingKeySequenceInComponent(componentPosition, keyHistory, keyName, keyEventType) {
    if (!this.componentHasActionsBoundToEventType(componentPosition, keyEventType)) {
      return null;
    }

    return this.getKeyHistoryMatcher(componentPosition).findMatch(
      keyHistory,
      keyName,
      keyEventType
    )
  }
Finds matcher for sequence and current key event for a component at a position
@param {number} componentPosition Position of the component
@param {KeyHistory} keyHistory History of key combinations to match
       against actions defined in component
@param {ReactKeyName} keyName Name of the key the current event relates to
@param {KeyEventType} keyEventType Type of key event
@returns {Object|null}