API Reference > imodeljs-common > iModels > IModelRpcOpenProps IModelRpcOpenProps Interface The properties to open a connection to an iModel for RPC operations. Properties Name Type Description changeSetId undefined | string Id of the last ChangeSet that was applied to the iModel - must be defined for briefcases that are synchronized with iModelHub. changesetIndex undefined | number The index of the last changeset. contextId Readonly undefined | string The context (Project, Asset, or other infrastructure) in which the iModel exists - must be defined for briefcases that are synchronized with iModelHub. iModelId Readonly undefined | string Guid of the iModel. openMode undefined | OpenMode Mode used to open the iModel Defined in core/common/src/IModel.ts Line 25 Last Updated: 29 November, 2022