如何导入对象？

在编写Workflow过程中，相关对象都通过Workflow包进行导入，梳理如下：

from modelarts import workflow as wf

Data包相关内容导入：

wf.data.DatasetTypeEnum
wf.data.Dataset
wf.data.DatasetVersionConfig
wf.data.DatasetPlaceholder
wf.data.ServiceInputPlaceholder
wf.data.ServiceData
wf.data.ServiceUpdatePlaceholder
wf.data.DataTypeEnum
wf.data.ModelData
wf.data.GalleryModel
wf.data.OBSPath
wf.data.OBSOutputConfig
wf.data.OBSPlaceholder
wf.data.SWRImage
wf.data.SWRImagePlaceholder
wf.data.Storage
wf.data.InputStorage
wf.data.OutputStorage
wf.data.LabelTask
wf.data.LabelTaskPlaceholder
wf.data.LabelTaskConfig
wf.data.LabelTaskTypeEnum
wf.data.MetricsConfig
wf.data.TripartiteServiceConfig
wf.data.DataConsumptionSelector

policy包相关内容导入：

wf.policy.Policy
wf.policy.Scene

steps包相关内容导入：

wf.steps.MetricInfo
wf.steps.Condition
wf.steps.ConditionTypeEnum
wf.steps.ConditionStep
wf.steps.LabelingStep
wf.steps.LabelingInput
wf.steps.LabelingOutput
wf.steps.LabelTaskProperties
wf.steps.ImportDataInfo
wf.steps.DataOriginTypeEnum
wf.steps.DatasetImportStep
wf.steps.DatasetImportInput
wf.steps.DatasetImportOutput
wf.steps.AnnotationFormatConfig
wf.steps.AnnotationFormatParameters
wf.steps.AnnotationFormatEnum
wf.steps.Label
wf.steps.ImportTypeEnum
wf.steps.LabelFormat
wf.steps.LabelTypeEnum
wf.steps.ReleaseDatasetStep
wf.steps.ReleaseDatasetInput
wf.steps.ReleaseDatasetOutput
wf.steps.CreateDatasetStep
wf.steps.CreateDatasetInput
wf.steps.CreateDatasetOutput
wf.steps.DatasetProperties
wf.steps.SchemaField
wf.steps.ImportConfig
wf.steps.JobStep
wf.steps.JobMetadata
wf.steps.JobSpec
wf.steps.JobResource
wf.steps.JobTypeEnum
wf.steps.JobEngine
wf.steps.JobInput
wf.steps.JobOutput
wf.steps.LogExportPath
wf.steps.MrsJobStep
wf.steps.MrsJobInput
wf.steps.MrsJobOutput
wf.steps.MrsJobAlgorithm
wf.steps.ModelStep
wf.steps.ModelInput
wf.steps.ModelOutput
wf.steps.ModelConfig
wf.steps.Template
wf.steps.TemplateInputs
wf.steps.ServiceStep
wf.steps.ServiceInput
wf.steps.ServiceOutput
wf.steps.ServiceConfig
wf.steps.StepPolicy

Workflow包相关内容导入：

wf.workflow
wf.Subgraph
wf.Placeholder
wf.PlaceholderType
wf.AlgorithmParameters
wf.BaseAlgorithm
wf.Algorithm
wf.AIGalleryAlgorithm
wf.resource
wf.SystemEnv
wf.add_whitelist_users
wf.delete_whitelist_users