gboolean afdal_af_kernel_af_user_permission_num_elements gint  permission_id,
AfDalSimpleFunc  usr_function,
gpointer  usr_data

Allows to get how many users have already set the given permission defined by permission_id.

INVOCATION METHOD: This function allows to perform a asynchronous remote invocation for the service "af_kernel::af_user::permission_num_elements".

permission_id The permission to check how many users the have it set.
usr_function An Asynchronous handler where the AfDalSimpleData value will be received.
usr_data User defined data to be passed in to the process function defined by usr_function.
TRUE if asynchronous request was sent to remote server (af_kernel). FALSE if there was an error while making remote service invocation.