% This is generated by ESQL's AbstractFunctionTestCase. Do not edit it. See ../README.md for how to regenerate it.

**Description**

Converts an input value to an unsigned long value. If the input parameter is of a date type, its value will be interpreted as milliseconds since the [Unix epoch](https://en.wikipedia.org/wiki/Unix_time), converted to unsigned long. Boolean `true` will be converted to unsigned long `1`, `false` to `0`.

