code: def _post_epoch_days_before_year(year):
      """Get the number of days between 1970-01-01 and YEAR-01-01"""
      y = year - 1
      return y * 365 + y // 4 - y // 100 + y // 400 - EPOCHORDINAL
  
imports: import bisect
  import calendar
  import collections
  import functools
  import re
  import weakref
  from datetime import datetime, timedelta, tzinfo
  from .None import _common, _tzpath
label_desc: Use image node_id 2 for calling a global function with example usage: _post_epoch_days_before_year(year) and returns: unknown