I cannot get the parameter value from inside family.
import clr
clr.AddReference(‘RevitAPI’)
from Autodesk.Revit.DB import FamilyManager
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
doc = DocumentManager.Instance.CurrentDBDocument
parameter = doc.FamilyManager.Parameters
param_name = IN[0]
for x in parameter:
b = x.Definition.Name
if b == param_name:
OUT = x.Definition.Name