/// <summary>
/// Sends request to join current group
/// </summary>
/// <returns>Request result</returns>
/// <exception cref="LinkedInAlreadyMemberException">Thrown if user is already member of the group</exception>
public LinkedInResponse <bool> Join()
{
if (MembershipState == LinkedInGroupRelationship.NonMember)
{
return(RequestRunner.RequestJoinGroup(Id));
}
throw new LinkedInAlreadyMemberException("The user is already member of group " + Name);
}