findMatch(keyCombination, keyName, keyEventType) {
    lazyLoadAttribute(this, 'order', () => this._setOrder());

    for(let combinationId of this._order) {
      const actionOptions = this._actionConfigs[combinationId];

      if (this._matchesActionConfig(keyCombination, keyName, keyEventType, actionOptions)) {
        return actionOptions;
      }
    }

    return null;
  }
Finds a MatchingActionConfig for a KeyCombination, ReactKeyName and
KeyEventType
@param {KeyCombination} keyCombination Record of key combinations
        to use in the match
@param {ReactKeyName} keyName Name of the key to use in the match
@param {KeyEventType} keyEventType The type of key event to use in the match
@returns {MatchingActionConfig|null} A MatchingActionOptions that matches the
         KeyCombination, ReactKeyName and KeyEventType