Add shared Parameters to Revit Document, NOT For Current Document

Hii, Everyone,
I’m trying to edit the node of “Add Shared Parameters to Project” from Archi Lab Package in order to make it applicable for any Un-opened Revit model ( for Example Linked Models), so what I’ve done is adding a document input to the custom node. the node works fine but the problem is that it creates the parameters in current project not in linked model however i customized the node to work on document not in current project, I just would like to know what is the problem with the below script that leads to that

    import clr
    clr.AddReference('ProtoGeometry')
    from Autodesk.DesignScript.Geometry import *

    # Import DocumentManager and TransactionManager
    clr.AddReference("RevitServices")
    import RevitServices
    from RevitServices.Persistence import DocumentManager
    from RevitServices.Transactions import TransactionManager

    # Import RevitAPI
    clr.AddReference("RevitAPI")
    import Autodesk
    from Autodesk.Revit.DB import *


    uiapp = DocumentManager.Instance.CurrentUIApplication
    app = uiapp.Application

    from System.Collections.Generic import *

    # Import ToDSType(bool) extension method
    clr.AddReference("RevitNodes")
    import Revit
    clr.ImportExtensions(Revit.Elements)
    import System
    #The inputs to this node will be stored as a list in the IN variable.
    dataEnteringNode = IN

    _paramName = IN[0]
    _groupName = IN[1]
    _paramType = IN[2]
    _visible = IN[3]
    _category = IN[4]
    _paramGroup = IN[5]
    _instance = IN[6]

    inputdocs = UnwrapElement(IN[7]) if isinstance(IN[7],list) else [UnwrapElement(IN[7])]
    inputdoc=inputdocs[0]

    #Part of script from Clockwork
    if inputdoc == None:
    	doc = DocumentManager.Instance.CurrentDBDocument
    elif inputdoc.GetType().ToString() == "Autodesk.Revit.DB.Document":
    	doc = inputdoc
    else: doc = DocumentManager.Instance.CurrentDBDocument

    def ParamBindingExists(_doc, _paramName, _paramType):
    	map = doc.ParameterBindings
    	iterator = map.ForwardIterator()
    	iterator.Reset()
    	while iterator.MoveNext():
    		if iterator.Key != None and iterator.Key.Name == _paramName and iterator.Key.ParameterType == _paramType:
    			paramExists = True
    			break
    		else:
    			paramExists = False
    	return paramExists

    def RemoveParamBinding(_doc, _paramName, _paramType):
    	map = doc.ParameterBindings
    	iterator = map.ForwardIterator()
    	iterator.Reset()
    	while iterator.MoveNext():
    		if iterator.Key != None and iterator.Key.Name == _paramName and iterator.Key.ParameterType == _paramType:
    			definition = iterator.Key
    			break
    	message = None
    	if definition != None:
    		map.Remove(definition)
    		message = "Success"
    	return message

    def addParam(doc, _paramName, _paramType, _visible, _instance, _groupName, _paramGroup):
    	message = None
    	if ParamBindingExists(doc, _paramName, _paramType):
    		if not RemoveParamBinding(doc, _paramName, _paramType) == "Success":
    			message = "Param Binding Not Removed Successfully"
    		else:
    			message = None
    			
    	group = app.OpenSharedParameterFile().Groups.get_Item(_groupName)
    	if group == None:
    		group = file.Groups.Create(_groupName)
    	if group.Definitions.Contains(group.Definitions.Item[_paramName]):
    		_def = group.Definitions.Item[_paramName]
    	else:
    		opt = ExternalDefinitionCreationOptions(_paramName, _paramType)
    		opt.Visible = _visible
    		_def = group.Definitions.Create(opt)
    	
    	param = doc.ParameterBindings.Insert(_def, bind, _paramGroup)
    	return message
    #"Start" the transaction
    TransactionManager.Instance.EnsureInTransaction(doc)

    try:
    	file = app.OpenSharedParameterFile()
    except:
    	message = "No Shared Parameter file found."
    	pass

    builtInCategory = System.Enum.ToObject(BuiltInCategory, _category.Id)
    cats = app.Create.NewCategorySet()
    cats.Insert(doc.Settings.Categories.get_Item(builtInCategory))
    if _instance:
    	bind = app.Create.NewInstanceBinding(cats)
    else:
    	bind = app.Create.NewTypeBinding(cats)


    if isinstance(_paramName, list):
    	for i, j, k, l, n in zip(_paramName, _paramType, _visible, _instance, _paramGroup):
    		message = addParam(doc, i, j, k, l, _groupName, n)
    else:
    	message = addParam(doc, _paramName, _paramType, _visible, _instance, _groupName, _paramGroup)
    # "End" the transaction
    TransactionManager.Instance.TransactionTaskDone()

    #Assign your output to the OUT variable
    if message == None:
    	OUT = "Success"
    else:
    	OUT = message


Create Shared Paramters in linked models_v1.dyn (23.0 KB)