Synchronise

import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *

clr.AddReference("RevitNodes")
import Revit
clr.ImportExtensions(Revit.Elements)

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




doc = DocumentManager.Instance.CurrentDBDocument
synchstate = IN[0]

if synchstate:
    tOptions = TransactWithCentralOptions()
    rOptions = RelinquishOptions(False)
    rOptions.StandardWorksets = False
    rOptions.ViewWorksets = False
    rOptions.FamilyWorksets = False
    rOptions.UserWorksets = False
    rOptions.CheckedOutElements = True
    sOptions = SynchronizeWithCentralOptions()
    sOptions.Compact = False
    sOptions.SaveLocalBefore = True
    sOptions.SaveLocalAfter = True
    sOptions.Comment = "Synched with Dynamo"
    doc.SynchronizeWithCentral(tOptions, sOptions)