code: def validate_plugin_config(plugin_config):
      return plugin_config or {}
  
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 10 for calling a global function with example usage: validate_plugin_config(plugin_config) and returns: unknown