def METHOD_NAME(credential_set_name: Optional[pulumi.Input[str]] = None,
                              registry_name: Optional[pulumi.Input[str]] = None,
                              resource_group_name: Optional[pulumi.Input[str]] = None,
                              opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetCredentialSetResult]:
    """
    Gets the properties of the specified credential set resource.
    :param str credential_set_name: The name of the credential set.
    :param str registry_name: The name of the container registry.
    :param str resource_group_name: The name of the resource group. The name is case insensitive.
    """
    ...