<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def validate_date(date, project_member_id, filename):
 """ Check if date is in ISO 8601 format. :param date: This field is the date to be checked. :param project_member_id: This field is the project_member_id corresponding to the date provided. :param filename: This field is the filename corresponding to the date provided. """

    try:
        arrow.get(date)
    except Exception:
        return False
    return True