def METHOD_NAME(expand: Optional[pulumi.Input[Optional[str]]] = None,
                                       resource_group_name: Optional[pulumi.Input[str]] = None,
                                       service_endpoint_policy_name: Optional[pulumi.Input[str]] = None,
                                       opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetServiceEndpointPolicyResult]:
    """
    Gets the specified service Endpoint Policies in a specified resource group.
    :param str expand: Expands referenced resources.
    :param str resource_group_name: The name of the resource group.
    :param str service_endpoint_policy_name: The name of the service endpoint policy.
    """
    ...