Gem::Package#initialize

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/package.rb, line 241
def initialize(gem, security_policy) # :notnew:
  require "zlib"

  @gem = gem

  @build_time      = Gem.source_date_epoch
  @checksums       = {}
  @contents        = nil
  @digests         = Hash.new {|h, algorithm| h[algorithm] = {} }
  @files           = nil
  @security_policy = security_policy
  @signatures      = {}
  @signer          = nil
  @spec            = nil
end