U:RDoc::AnyMethod[iI" parse:EFI"/OptionParser::Switch::PlacedArgument#parse;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph; [I"?Returns nil if argument is not present or begins with '-'.;T: @fileI"lib/optparse.rb;T:0@omit_headings_from_table_of_contents_below000[I"(arg, argv, &error);T@FI"PlacedArgument;TcRDoc::NormalClass00