Identifier used to represent a single application (a.k.a. provider). This model represents the surface-agnostic counterpart for assistant.api.core_types.Provider. E.g. it should avoid directly using package names for Android, bundle identifiers for iOS, etc. We require the transformation between assistant.context.ProviderId and assistant.api.core_types.Provider to either be lossless, or "lossy yet retrievable" (e.g. if package name is not available in ProviderId, it can still be retrieved using the ProviderMappingsModule). NOTE: 1. As of May 2021, verticals are highly fragmented in terms of how they represent/identify a provider, and so we may need to accommodate some vertical-specific representations. However, these should be generalized as much as possible so that they can be used by other verticals if needed. 2. If we need to differentiate between whether a provider is a media provider, app actions provider, timer provider, etc. we should capture this information in the context proto that contains a ProviderId field, rather than in the ProviderId message itself. 3. Any common fields across different provider identifier representations (e.g. ecosystem type) should be part of assistant.context.ProviderId directly.

Attributes

• appProviderId (type: GoogleApi.ContentWarehouse.V1.Model.AssistantContextAppProviderId.t, default: nil) - TODO(b/241170835) Deprecate this field.
• ecosystemType (type: String.t, default: nil) - Ecosystem type for this provider.
• mediaProviderId (type: GoogleApi.ContentWarehouse.V1.Model.AssistantContextMediaProviderId.t, default: nil) - DEPRECATED. Fields in MediaProviderId have been pulled out into separate fields in ProviderId and ProviderMetadata. TODO(b/243953766) Deprecate this field.
• mid (type: String.t, default: nil) - The MID of the provider. A MID is a unique identifier issued by Knowledge Graph for all entities contained in its graph.
• providerCorpusId (type: String.t, default: nil) - ID issued by the Provider Corpus to uniquely identify a provider entity e.g. an Android app, a Cast app or a Cloud provider. In practice, a single partner can have multiple providers entities. For more detail, see go/se-storage-provider-id. This is the preferred/ standardized ID to use for ProviderId that all use-cases should eventually migrate to.
• providerVariant (type: GoogleApi.ContentWarehouse.V1.Model.AssistantContextProviderVariant.t, default: nil) - Provider variant corresponding to the current provider. It's used together with mid to uniquely identify provider.