code: def validate_title(title):
      return title
  
file_path: perspective/python/perspective/perspective/viewer/validate.py
imports: from datetime import datetime
  from ..core import ALL_FILTERS, Aggregate, Plugin, Sort
  from ..core.exception import PerspectiveError
label_desc: Use image node_id 11 for calling a global function with example usage: validate_title(title) and returns: title