def METHOD_NAME(policy_name: Optional[pulumi.Input[str]] = None,
                                  resource_group_name: Optional[pulumi.Input[str]] = None,
                                  resource_name: Optional[pulumi.Input[str]] = None,
                                  opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetReplicationPolicyResult]:
    """
    Gets the details of a replication policy.
    :param str policy_name: Replication policy name.
    :param str resource_group_name: The name of the resource group where the recovery services vault is present.
    :param str resource_name: The name of the recovery services vault.
    """
    ...