{ package Parse_Options;    # {{{1
	use warnings;
	use 5.14.0;
	use mro;
	our (@ISA,@fields);
	use mem &{sub(){$::INC{'Parse_Options.pm'}=1}};
	use mem &{sub(){our @fields = qw(quiet verbose numprocs ratio_jobs srcX dstX);
									our @ISA = (qw(Data::Vars FileList main)); 
								}};
	use Data::Vars \@fields,{quiet=>0,verbose=>0,ratio_jobs=>6/5};