Mini Shell

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

block_params: ""
comment: 
- !ruby/struct:SM::Flow::P 
  body: Obtains a lock, runs the block, and releases the lock when the block completes. See the example under Mutex.
full_name: Mutex#synchronize
is_singleton: false
name: synchronize
params: () {|| ...}
visibility: public