public void AddAudienceMembers(AdwordsUserListService userListService, long audienceId, string email, string userId)
{
List<Member> memberList = new List<Member>(email.Length);
Member member = new Member();
member.hashedEmail = Hash(Normalise(email[i]));
member.userId = userId;
memberList.Add(member);
MutateMembersOperation mutateMembersOperation = new MutateMembersOperation()
{
operand = new MutateMembersOperand { userListId = audienceId, membersList = memberList.ToArray() },
@operator = Operator.ADD
};
// Add members to the user list based on email addresses.
MutateMembersReturnValue mutateMembersResult = userListService.mutateMembers(new MutateMembersOperation[] { mutateMembersOperation });
mutateMembersResult.Dump();
}