code: function checkRTCStatsIceCandidatePairState(key, value)
  {
    if(typeof value != 'string')
      throw SyntaxError(key+' param should be a String, not '+typeof value);
  
    if(!value.match('frozen|waiting|inprogress|failed|succeeded|cancelled'))
      throw SyntaxError(key+' param is not one of [frozen|waiting|inprogress|failed|succeeded|cancelled] ('+value+')');
  }
docs: Represents the state of the checklist for the local and remote candidates in
  a pair.
  
  @typedef core/complexTypes.RTCStatsIceCandidatePairState
  
  @type {(frozen|waiting|inprogress|failed|succeeded|cancelled)}
   
  Checker for {@link module:core/complexTypes.RTCStatsIceCandidatePairState}
  
  @memberof module:core/complexTypes
  
  @param {external:String} key
  @param {module:core/complexTypes.RTCStatsIceCandidatePairState} value