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--- !ruby/object:RI::MethodDescription 
aliases: 
- !ruby/object:RI::AliasName 
  name: shift
- !ruby/object:RI::AliasName 
  name: deq
block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Retrieves data from the queue. If the queue is empty, the calling thread is suspended until data is pushed onto the queue. If <tt>non_block</tt> is true, the thread isn't suspended, and an exception is raised.
full_name: Queue#pop
is_singleton: false
name: pop
params: (non_block=false)
visibility: public