code: func (r Network_Storage) GetAllowableSubnets(filterNetworkIdentifier *string) (resp []datatypes.Network_Subnet, err error) {
  	params := []interface{}{
  		filterNetworkIdentifier,
  	}
  	err = r.Session.DoRequest("SoftLayer_Network_Storage", "getAllowableSubnets", params, &r.Options, &resp)
  	return
  }
docs: // This method retrieves a list of SoftLayer_Network_Subnet that can be authorized to this SoftLayer_Network_Storage.