code: public GroovyActionBuilder script(Resource scriptResource, Charset charset) {
  		try {
  			action.setScript(FileUtils.readToString(scriptResource, charset));
  		} catch (IOException e) {
  			throw new CitrusRuntimeException("Failed to read script resource file", e);
  		}
  		return this;
  	}
docs: Sets the Groovy script to execute.
  @param scriptResource
  @param charset
  @return