Gem::SafeMarshal::Reader#read_hash

# File tmp/rubies/ruby-4.0.0/lib/rubygems/safe_marshal/reader.rb, line 245
def read_hash
  length = read_integer
  return EMPTY_HASH if length == 0
  pairs = Array.new(length) do
    [read_element, read_element]
  end
  Elements::Hash.new(pairs)
end