code: def flatten_list(nested_list):
      return [item for sublist in nested_list for item in sublist]
  
imports: import random
  from datetime import datetime
  import pandas
  import woodwork.type_sys.type_system
  from woodwork import logical_types
label_desc: Use image node_id 1 for calling a global function with example usage: flatten_list(nested_list) and returns: unknown