how to get history of alerts between dates about python-alerta-client

[itskannanraj]

i have added required details in alert.py. now i would able to get last receive time, duplicate count and service

def __repr__(self):
    return 'Alert(id=%r, environment=%r, resource=%r, event=%r, severity=%r, status=%r, customer=%r, time=%r, dublicate=%r, server=%r)' % (
        self.id, self.environment, self.resource, self.event, self.severity, self.status, self.customer, self.last_receive_time, self.duplicate_count, self.service)

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