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

## Parameters

`geometry`
:   Expression of type `geo_point`. If `null`, the function returns `null`.

`precision`
:   Expression of type `integer`. If `null`, the function returns `null`. Valid values are between [0 and 15](https://h3geo.org/docs/core-library/restable/).

`bounds`
:   Optional bounds to filter the grid tiles, a `geo_shape` of type `BBOX`. Use [`ST_ENVELOPE`](/reference/query-languages/esql/functions-operators/spatial-functions/st_envelope.md) if the `geo_shape` is of any other type.

