# DirectoryExpander

Expands directories created by `ctx.actions.declare_directory` during the execution phase. This is useful to expand directories in `map_each`.

## Members

- expand

## expand

    list DirectoryExpander.expand(file)

If the given `File` is a directory, this returns a list of `File`s recursively underneath the directory. Otherwise, this returns a list containing just the given `File` itself.

### Parameters

Parameter | Description
--- | ---
`file` | required The directory or file to expand.