def get_engine(self, echo=False):
    import sqlalchemy
    if (not self.engine):
        self.create_engine(echo=self.echo)
    self.engine_inspect = sqlalchemy.inspect(self.engine)
    return self.engine
def get_engine(self, echo=False):
    import sqlalchemy
    if (not self.engine):
        self.create_engine(echo=self.echo)
    self.engine_inspect = sqlalchemy.inspect(self.engine)
    return self.engine