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"bENV.keep_if { |name, value| block } -> ENV
ENV.keep_if                         -> Enumerator
;T0[I"();T@FI"ENV;TcRDoc::NormalClass00