func XMLSecTmplSignatureCreateNsPref(doc types.Document, c14nMethod TransformID, signMethod TransformID, id string, prefix string) (types.Node, error) {
docptr := (*C.xmlDoc)(unsafe.Pointer(doc.Pointer()))
if docptr == nil {
return nil, clib.ErrInvalidDocument
}
var xcid *C.xmlChar
if id != "" {
xcid = stringToXMLChar(id)
defer C.free(unsafe.Pointer(xcid))
}
var xcprefix *C.xmlChar
if prefix != "" {
xcprefix = stringToXMLChar(prefix)
defer C.free(unsafe.Pointer(xcprefix))
}
ptr := C.xmlSecTmplSignatureCreateNsPref(
docptr,
c14nMethod.ptr,
signMethod.ptr,
xcid,
xcprefix,
)
if ptr == nil {
return nil, errors.New("failed to create signature template")
}
return dom.WrapNode(uintptr(unsafe.Pointer(ptr)))
}