U:RDoc::AnyMethod[iI" keep_if:ETI"ENV::keep_if;TT: publico:RDoc::Markup::Document: @parts[o:RDoc::Markup::Paragraph; [I"MDeletes every environment variable where the block evaluates to +false+.;To:RDoc::Markup::BlankLineo; ; [I"1Returns an enumerator if no block was given.;T: @fileI" hash.c;T:0@omit_headings_from_table_of_contents_below0I"WENV.keep_if { |name, value| } -> Hash ENV.keep_if -> Enumerator ;T0[I"();T@FI"ENV;TcRDoc::NormalClass00