/** Create the Zlib module and add it to the Ruby runtime.
*
*/
public static RubyModule createZlibModule(Ruby runtime) {
RubyModule mZlib = runtime.defineModule("Zlib");
mZlib.defineAnnotatedMethods(RubyZlib.class);
RubyClass cStandardError = runtime.getStandardError();
RubyClass cZlibError = mZlib.defineClassUnder("Error", cStandardError, cStandardError.getAllocator());
mZlib.defineClassUnder("StreamEnd", cZlibError, cZlibError.getAllocator());
mZlib.defineClassUnder("StreamError", cZlibError, cZlibError.getAllocator());