code: func (r Network_Storage) GetAllFilesByFilter(filter *datatypes.Container_Utility_File_Entity) (resp []datatypes.Container_Utility_File_Entity, err error) {
  	params := []interface{}{
  		filter,
  	}
  	err = r.Session.DoRequest("SoftLayer_Network_Storage", "getAllFilesByFilter", params, &r.Options, &resp)
  	return
  }
docs: // {{CloudLayerOnlyMethod}} Retrieve details such as id, name, size, create date for all files matching the filter's criteria in a Storage account's root directory. This does not download file content.