create Query Handler
Creates participants user list query.
Return
PagedQueryHandler<User>
to retrieve the list of operators since 3.0.0
Parameters
channel Url
The url of OpenChannel
with participants to be fetched by the query
Creates participants user list query.
PagedQueryHandler<User>
to retrieve the list of operators since 3.0.0
The url of OpenChannel
with participants to be fetched by the query