在导入事件期间定义脚本化导入器的导入上下文。
此类包含 OnImportAsset() 任务的输入和输出信息。
| assetPath | 要导入的源资源文件的路径。 | 
| mainObject | AssetImportContext 上设置的主要对象。 | 
| selectedBuildTarget | Returns the current build target and creates a dependency on the target platform within a scripted importer. | 
| AddObjectToAsset | 向导入操作的结果添加对象。 | 
| DependsOnArtifact | Setup artifact dependency to an asset. | 
| DependsOnCustomDependency | Allows you to specify that an Asset has a custom dependency. | 
| DependsOnSourceAsset | Allows you to specify that an Asset depends directly on the source file of another Asset (as opposed to the import result of another asset). | 
| GetArtifactFilePath | Returns the path of the Artifact file that was created by another importer, and adds a dependency to that file. | 
| GetObjects | 获取 AssetImportContext 上设置的对象列表。 | 
| GetOutputArtifactFilePath | Returns the path where to write a new Artifact File with the given fileName. | 
| LogImportError | 记录导入期间遇到的错误消息。 | 
| LogImportWarning | 记录导入期间遇到的警告消息。 | 
| SetMainObject | 设置导入的主要对象。 |