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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Parses argument, converts and returns <tt>arg</tt>, <tt>block</tt> and result of conversion. Yields at semi-error condition instead of raising an exception.
full_name: OptionParser::Switch#conv_arg
is_singleton: false
name: conv_arg
params: (arg, val = nil)
visibility: private
