code: def strptime(time, format, zone_id):
      """
      Interpret a formatted datetime string as a Unix timestamp (number of seconds since 1970-01-01T00:00Z (ISO)).
  
      Examples
      --------
  
      >>> hl.eval(hl.experimental.strptime("07/08/19  3:00:01 AM", "%D %l:%M:%S %p", "America/New_York"))
      1562569201
  
      >>> hl.eval(hl.experimental.strptime("Saturday, October 11, 1997. 05:45:23 AM", "%A, %B %e, %Y. %r", "GMT+2"))
      876541523
  
      Notes
      -----
      The following formatting characters are supported in format strings: A a B b D d e F H I j k l M m n p R r S s T t U u V v W Y y z
      See documentation here: https://linux.die.net/man/3/strftime
  
      A zone id can take one of three forms. It can be an explicit offset, like "+01:00", a relative offset, like "GMT+2",
      or a IANA timezone database (TZDB) identifier, like "America/New_York". Wikipedia maintains a list of TZDB identifiers here: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones
  
      Currently, the parser implicitly uses the "en_US" locale.
  
      This function will fail if there is not enough information in the string to determine a particular timestamp.
      For example, if you have the string `"07/08/09"` and the format string `"%Y.%m.%d"`, this method will fail, since that's not specific
      enough to determine seconds from. You can fix this by adding "00:00:00" to your date string and "%H:%M:%S" to your format string.
  
      Parameters
      ----------
      time : str or :class:`.Expression` of type :py:data:`.tstr`
          The string from which to parse the time.
      format : str or :class:`.Expression` of type :py:data:`.tstr`
          The format string describing how to parse the time.
      zone_id: str or :class:`.Expression` of type :py:data:`.tstr`
          An id representing the timezone. See notes above.
  
      Returns
      -------
      :class:`~.Int64Expression`
          The Unix timestamp associated with the given time string.
      """
      return _func("strptime", hl.tint64, time, format, zone_id)
  
imports: import hail
  from hail.expr.expressions import expr_str, expr_int64
  from hail.expr.functions import _func
  from hail.typecheck import typecheck
label_desc: Use image node_id 2 for calling a global function with example usage: strptime(time, format, zone_id) and returns: _func