interface DOMImplementation {
/* IID: { 0xa6cf9074, 0x15b3, 0x11d2, \
{ 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } } */
boolean hasFeature(in DOMString feature,
in DOMString version);
};