| Parameter | Type | Required | Description |
|---|---|---|---|
selector | str | No | CSS or XPath selector for the file input. |
files | str | list[str] | No | File path or list of file paths to upload. |
prompt | str | No | Natural-language description of the file input to target. |
ai | str | No | Controls AI behavior. Default "fallback" tries the selector first, then AI. |
str - the resolved selector used.
