@blueprint.route('/projects/<project>/meters/<meter>/volume/sum')
def compute_project_volume_sum(project, meter):
 check_authorized_project(project)
 return _get_statistics('sum', meter=meter, project=project)

@ blueprint . route ( '/projects/<project>/meters/<meter>/volume/sum' ) def compute_project_volume_sum ( project , meter ) : check_authorized_project ( project ) return _get_statistics ( 'sum' , meter = meter , project = project )
return the total volume for a meter .