1. DomName('XSLTProcessor.setParameter')
  2. DocsEditable()
void setParameter(String namespaceURI, String localName, String value)

Source 

@DomName('XSLTProcessor.setParameter')
@DocsEditable()
void setParameter(String namespaceURI, String localName, String value) => _blink.BlinkXSLTProcessor.instance.setParameter_Callback_3_(this, namespaceURI, localName, value);