def call(member, ctx)
      (@only ? @only.call(member, ctx) : true) &&
      (@except ? !@except.call(member, ctx) : true)
    end
def call(member, ctx)
      (@only ? @only.call(member, ctx) : true) &&
      (@except ? !@except.call(member, ctx) : true)
    end
def call ( member , ctx ) ( @only ? @only . call ( member , ctx ) : true ) && ( @except ? ! @except . call ( member , ctx ) : true ) end
Returns true if `member, ctx` passes this filter
Returns true if member ctx passes this filter