text: """OpenAPI core schemas util module"""
  import datetime
  from distutils.util import strtobool
  from json import dumps
  from six import string_types
  
  
  def forcebool(val):
      if isinstance(val, string_types):
          val = strtobool(val)
  
      return bool(val)
  
  
  def dicthash(d):
      return hash(dumps(d, sort_keys=True))
  
  
  def format_date(value):
      return datetime.datetime.strptime(value, '%Y-%m-%d').date()
  
  
  def format_datetime(value):
      return datetime.datetime.strptime(value, '%Y-%m-%dT%H:%M:%S')
  