This method is only available on newer versions. The first available version (v2_6_3) is shown here.
new(out_stream, *args)
Creates a new threaded download reporter that will display on out_stream. The other arguments are ignored.
# File lib/rubygems/user_interaction.rb, line 573 def initialize(out_stream, *args) @file_name = nil @out = out_stream end