| guid | The GUID of a directory in your Unity project. |
| destination | The path to place the directory copy. This is relative to the Gradle project root. |
| includePattern | A Regex filter to include files. Default value is 'null' |
| excludePattern | A Regex filter to exclude files. Default value is '\.meta$' |
Declare a directory to copy into the Gradle project.
If any files in the directory copy have the same destination as a file that has already been added, Unity throws an exception.