--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Add a callback for Jabber::Roster::Helper::RosterItem updates
- !ruby/struct:SM::Flow::P 
  body: Note that this will be called much after initialization for the answer of the initial roster request
- !ruby/struct:SM::Flow::P 
  body: "The block receives two objects:"
- !ruby/object:SM::Flow::LIST 
  contents: 
  - !ruby/struct:SM::Flow::LI 
    label: "*"
    body: the old Jabber::Roster::Helper::RosterItem
  - !ruby/struct:SM::Flow::LI 
    label: "*"
    body: the new Jabber::Roster::Helper::RosterItem
  type: :BULLET
full_name: Jabber::Roster::Helper#add_update_callback
is_singleton: false
name: add_update_callback
params: (prio = 0, ref = nil, &block)
visibility: public
