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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 get_configs(cls):
 """Get rate limiters configuration specified at application level :rtype: dict of configurations """

        import docido_sdk.config
        http_config = docido_sdk.config.get('http') or {}
        session_config = http_config.get('session') or {}
        rate_limits = session_config.get('rate_limit') or {}
        return rate_limits