AfterAppend adds a callback to be run immediately after a Job is appended to the queue. The callback will be passed the queue itself and the job that was just appended. If Append is called when the Queue's length is not below MaxLength, AfterAppend callbacks will still run but they'll be passed j=n
(f func(q *Queue, j *Job))
source not stored for this graph (policy: none)
no outgoing calls