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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _find_usage_application_versions(self):
 """find usage for ElasticBeanstalk application verions"""

        versions = self.conn.describe_application_versions()
        self.limits['Application versions']._add_current_usage(
            len(versions['ApplicationVersions']),
            aws_type='AWS::ElasticBeanstalk::ApplicationVersion',
        )