def METHOD_NAME(resource_group_name: Optional[str] = None,
                resource_name: Optional[str] = None,
                opts: Optional[pulumi.InvokeOptions] = None) -> AwaitableGetServiceResult:
    """
    Get the metadata of a service instance.
    Azure REST API version: 2023-02-28.
    :param str resource_group_name: The name of the resource group that contains the service instance.
    :param str resource_name: The name of the service instance.
    """
    __args__ = dict()
    __args__['resourceGroupName'] = resource_group_name
    __args__['resourceName'] = resource_name
    opts = pulumi.InvokeOptions.merge(_utilities.get_invoke_opts_defaults(), opts)
    __ret__ = pulumi.runtime.invoke('azure-native:healthcareapis:getService', __args__, opts=opts, typ=GetServiceResult).value
    return AwaitableGetServiceResult(
        etag=pulumi.get(__ret__, 'etag'),
        id=pulumi.get(__ret__, 'id'),
        identity=pulumi.get(__ret__, 'identity'),
        kind=pulumi.get(__ret__, 'kind'),
        location=pulumi.get(__ret__, 'location'),
        name=pulumi.get(__ret__, 'name'),
        properties=pulumi.get(__ret__, 'properties'),
        system_data=pulumi.get(__ret__, 'system_data'),
        tags=pulumi.get(__ret__, 'tags'),
        type=pulumi.get(__ret__, 'type'))