|original\_path|[string](../types/string.md) | Yes|Local path to a file from which the file is generated, may be empty if there is no such file|
|conversion|[string](../types/string.md) | Yes|String specifying conversion applied to the original file, should be persistent across application restart|
|expected\_size|[int](../types/int.md) | Yes|Expected size of the generated file|
|should\_cache|[Bool](../types/Bool.md) | Yes|True, if result of the conversion should be cached persistently|