https://docs.unity3d.com/2017.3/Documentation/ScriptReference/AssetImporter.SourceAssetIdentifier-type.html
Unity - Scripting API: AssetImporter.SourceAssetIdentifier.type
scripting apiunitytype
https://docs.unity3d.com/es/2017.3/ScriptReference/AssetImporter.SourceAssetIdentifier-type.html
AssetImporter.SourceAssetIdentifier-type - Unity Scripting API
The type of the Asset.
typeunityscriptingapi