@classmethod
def count(cls, session=None):
    'Count number of trials on database\n        '
    session = (session or relational.session)
    return session.query(cls.m).count()
Count number of trials on database
@classmethod
def count(cls, session=None):
    '\n        '
    session = (session or relational.session)
    return session.query(cls.m).count()