/// <summary>
 /// Function to create persons party.
 /// </summary>
 /// <param name="persons">Instance of Persons</param>
 /// <param name="personIdentityList">List of person identities containing person id and person type</param>
 /// <returns>Instance of PersonsParty</returns>
 public async Task<PersonsParty> RetrieveParty(Person persons, IList<PersonIdentity> personIdentityList)
 {
     return await this.CreateParty(persons.RetrieveFilteredPersons(personIdentityList), false);
 }