def _set_cir(self, v, load=False):
    """
    Setter method for cir, mapped from YANG variable /policy_map/class/police/cir (uint64)
    If this variable is read-only (config: false) in the
    source YANG file, then _set_cir is considered as a private
    method. Backends looking to populate this variable should
    do so via calling thisObj._set_cir() directly.
    """
    if hasattr(v, "_utype"):
      v = v._utype(v)
    try:
      t = YANGDynClass(v,base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range':  ['0..18446744073709551615']}, int_size=64), restriction_dict={'range': [u'40000..100000000000']}), is_leaf=True, yang_name="cir", rest_name="cir", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Committed Information Rate.', u'cli-suppress-no': None, u'cli-hide-in-submode': None}}, namespace='urn:brocade.com:mgmt:brocade-policer', defining_module='brocade-policer', yang_type='uint64', is_config=True)
    except (TypeError, ValueError):
      raise ValueError({
          'error-string': """cir must be of a type compatible with uint64""",
          'defined-type': "uint64",
          'generated-type': """YANGDynClass(base=RestrictedClassType(base_type=RestrictedClassType(base_type=long, restriction_dict={'range':  ['0..18446744073709551615']}, int_size=64), restriction_dict={'range': [u'40000..100000000000']}), is_leaf=True, yang_name="cir", rest_name="cir", parent=self, path_helper=self._path_helper, extmethods=self._extmethods, register_paths=True, extensions={u'tailf-common': {u'info': u'Committed Information Rate.', u'cli-suppress-no': None, u'cli-hide-in-submode': None}}, namespace='urn:brocade.com:mgmt:brocade-policer', defining_module='brocade-policer', yang_type='uint64', is_config=True)""",
        })

    self.__cir = t
    if hasattr(self, '_set'):
      self._set()