How to decompress deflated in chunks in Ruby?

Question

ruby

According to the example in the Zlib::Inflate Ruby documentation

open "compressed.file" do |compressed_io|
  zi = Zlib::Inflate.new(Zlib::MAX_WBITS + 32)

  begin
    open "uncompressed.file", "w+" do |uncompressed_io|
      uncompressed_io << zi.inflate(compressed_io.read)
    end
  ensure
    zi.close
  end
end

From the code, you can see compressed_io.readthat the entire contents of the file are read as the passed argument.
Are there any more humane ways of unpacking, ie. portions?