def by_exchange_protection_policy_id(self,exchange_protection_policy_id: str) -> ExchangeProtectionPolicyItemRequestBuilder:
        """
        Provides operations to manage the exchangeProtectionPolicies property of the microsoft.graph.backupRestoreRoot entity.
        param exchange_protection_policy_id: The unique identifier of exchangeProtectionPolicy
        Returns: ExchangeProtectionPolicyItemRequestBuilder
        """
        if exchange_protection_policy_id is None:
            raise TypeError("exchange_protection_policy_id cannot be null.")
        from .item.exchange_protection_policy_item_request_builder import ExchangeProtectionPolicyItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["exchangeProtectionPolicy%2Did"] = exchange_protection_policy_id
        return ExchangeProtectionPolicyItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the exchangeProtectionPolicies property of the microsoft.graph.backupRestoreRoot entity.
        param exchange_protection_policy_id: The unique identifier of exchangeProtectionPolicy
        Returns: ExchangeProtectionPolicyItemRequestBuilder
        
msgraph/generated/solutions/backup_restore/exchange_protection_policies/exchange_protection_policies_request_builder.py