code: def p_range_datetime(p):
      "range : datetime"
      datetime = p[1]
      p[0] = lambda ref: (datetime(ref), datetime(ref))
  
imports: from datetime import datetime, date, time, timedelta
  from guild import _yacc
  from .None import trlex
label_desc: Use image node_id 49 for calling a global function with example usage: p_range_datetime(p) without return types