def METHOD_NAME(variable_name: Optional[pulumi.Input[str]] = None,
                              variable_value_name: Optional[pulumi.Input[str]] = None,
                              opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetVariableValueResult]:
    """
    This operation retrieves a single variable value; given its name, subscription it was created at and the variable it's created for.
    Azure REST API version: 2022-08-01-preview.
    :param str variable_name: The name of the variable to operate on.
    :param str variable_value_name: The name of the variable value to operate on.
    """
    ...