* `useBigIntArguments` {boolean} If `true`, integer arguments to `function`

are converted to `BigInt`s. If `false`, integer arguments are passed as

JavaScript numbers. **Default:** `false`.

* `varargs` {boolean} If `true`, `function` can accept a variable number of

arguments. If `false`, `function` must be invoked with exactly

`function.length` arguments. **Default:** `false`.

* `varargs` {boolean} If `true`, `function` may be invoked with any number of

arguments (between zero and [`SQLITE_MAX_FUNCTION_ARG`][]). If `false`,

`function` must be invoked with exactly `function.length` arguments.

**Default:** `false`.

* `function` {Function} The JavaScript function to call when the SQLite

function is invoked.

function is invoked. The return value of this function should be a valid

SQLite data type: see [Type conversion between JavaScript and SQLite][].

The result defaults to `NULL` if the return value is `undefined`.

This method is used to create SQLite user-defined functions. This method is a

wrapper around [`sqlite3_create_function_v2()`][].

[Constants Passed To The Conflict Handler]: https://www.sqlite.org/session/c_changeset_conflict.html

[Constants Returned From The Conflict Handler]: https://www.sqlite.org/session/c_changeset_abort.html

[SQL injection]: https://en.wikipedia.org/wiki/SQL_injection

[Type conversion between JavaScript and SQLite]: #type-conversion-between-javascript-and-sqlite

[`ATTACH DATABASE`]: https://www.sqlite.org/lang_attach.html

[`PRAGMA foreign_keys`]: https://www.sqlite.org/pragma.html#pragma_foreign_keys

[`SQLITE_DETERMINISTIC`]: https://www.sqlite.org/c3ref/c_deterministic.html

[`SQLITE_DIRECTONLY`]: https://www.sqlite.org/c3ref/c_deterministic.html

[`SQLITE_MAX_FUNCTION_ARG`]: https://www.sqlite.org/limits.html#max_function_arg

[`database.applyChangeset()`]: #databaseapplychangesetchangeset-options

[`sqlite3_changes64()`]: https://www.sqlite.org/c3ref/changes.html

[`sqlite3_close_v2()`]: https://www.sqlite.org/c3ref/close.html