Vertex AI API (aiplatform:v1beta1)

2026-02-24

24 new methods

Additions

    Methods
  • aiplatform.projects.locations.publishers.models.invoke.invoke

      Parameter Order :

    • endpoint
    • invokeId
    • Scopes :

    • https://www.googleapis.com/auth/cloud-platform
    • https://www.googleapis.com/auth/cloud-platform.read-only
    • Parameters :

        endpoint

          Required : Yes

          Location : path

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/publishers/[^/]+/models/[^/]+$

          Description : Required. The name of the Endpoint requested to serve the prediction. Format: `projects/{project}/locations/{location}/endpoints/{endpoint}`

        invokeId

          Type : string

          Location : path

          Required : Yes

      Description : Forwards arbitrary HTTP requests for both streaming and non-streaming cases. To use this method, invoke_route_prefix must be set to allow the paths that will be specified in the request.

      HTTP Method : POST

      Path : v1beta1/{+endpoint}/invoke/{+invokeId}

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/publishers/{publishersId}/models/{modelsId}/invoke/{invokeId}

  • aiplatform.projects.locations.reasoningEngines.feedbackEntries.operations.wait

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+name}:wait

      HTTP Method : POST

      Parameter Order : name

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}:wait

      Parameters :

        name

          Type : string

          Description : The name of the operation resource to wait on.

          Required : Yes

          Pattern : ^projects/[^/]+/locations/[^/]+/reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Location : path

        timeout

          Description : The maximum duration to wait before timing out. If left blank, the wait will be at most the time permitted by the underlying HTTP/RPC protocol. If RPC context deadline is also specified, the shorter one will be used.

          Location : query

          Format : google-duration

          Type : string

      Description : Waits until the specified long-running operation is done or reaches at most a specified timeout, returning the latest state. If the operation is already done, the latest state is immediately returned. If the timeout specified is greater than the default HTTP/RPC timeout, the HTTP/RPC timeout is used. If the server does not support this method, it returns `google.rpc.Code.UNIMPLEMENTED`. Note that this method is on a best-effort basis. It may return the latest state before the specified timeout (including immediately), meaning even an immediate response is no guarantee that the operation is done.

  • aiplatform.projects.locations.reasoningEngines.feedbackEntries.operations.cancel

      Parameter Order : name

      Parameters :

        name

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Location : path

          Required : Yes

          Description : The name of the operation resource to be cancelled.

      Path : v1beta1/{+name}:cancel

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Description : Starts asynchronous cancellation on a long-running operation. The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns `google.rpc.Code.UNIMPLEMENTED`. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of `1`, corresponding to `Code.CANCELLED`.

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}:cancel

      HTTP Method : POST

  • aiplatform.projects.locations.reasoningEngines.feedbackEntries.operations.list

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations

      Parameters :

        returnPartialSuccess

          Location : query

          Description : When set to `true`, operations that are reachable are returned as normal, and those that are unreachable are returned in the ListOperationsResponse.unreachable field. This can only be `true` when reading across collections. For example, when `parent` is set to `"projects/example/locations/-"`. This field is not supported by default and will result in an `UNIMPLEMENTED` error if set unless explicitly documented otherwise in service or product specific documentation.

          Type : boolean

        pageSize

          Format : int32

          Description : The standard list page size.

          Type : integer

          Location : query

        name

          Description : The name of the operation's parent resource.

          Location : path

          Pattern : ^projects/[^/]+/locations/[^/]+/reasoningEngines/[^/]+/feedbackEntries/[^/]+$

          Required : Yes

          Type : string

        pageToken

          Type : string

          Description : The standard list page token.

          Location : query

        filter

          Location : query

          Description : The standard list filter.

          Type : string

      HTTP Method : GET

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+name}/operations

      Description : Lists operations that match the specified filter in the request. If the server doesn't support this method, it returns `UNIMPLEMENTED`.

      Parameter Order : name

  • aiplatform.projects.locations.reasoningEngines.feedbackEntries.operations.delete

      Parameters :

        name

          Required : Yes

          Description : The name of the operation resource to be deleted.

          Type : string

          Location : path

          Pattern : ^projects/[^/]+/locations/[^/]+/reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

      HTTP Method : DELETE

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+name}

      Parameter Order : name

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}

      Description : Deletes a long-running operation. This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns `google.rpc.Code.UNIMPLEMENTED`.

  • aiplatform.projects.locations.reasoningEngines.feedbackEntries.operations.get

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Description : Gets the latest state of a long-running operation. Clients can use this method to poll the operation result at intervals as recommended by the API service.

      Parameter Order : name

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}

      Parameters :

        name

          Location : path

          Pattern : ^projects/[^/]+/locations/[^/]+/reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Required : Yes

          Description : The name of the operation resource.

          Type : string

      Path : v1beta1/{+name}

      HTTP Method : GET

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.delete

      Path : v1beta1/{+name}

      HTTP Method : DELETE

      Parameters :

        name

          Description : Required. The name of the RagDataSchema resource to be deleted. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragDataSchemas/{rag_data_schema}`

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragDataSchemas/[^/]+$

          Type : string

          Required : Yes

          Location : path

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas/{ragDataSchemasId}

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Description : Deletes a RagDataSchema.

      Parameter Order : name

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.create

      Description : Creates a RagDataSchema.

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+parent}/ragDataSchemas

      Parameter Order : parent

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas

      HTTP Method : POST

      Parameters :

        parent

          Required : Yes

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+$

          Description : Required. The resource name of the RagCorpus to create the RagDataSchema in. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`

          Location : path

        ragDataSchemaId

          Location : query

          Description : Optional. The ID to use for the RagDataSchema, which will become the final component of the RagDataSchema's resource name if the user chooses to specify. Otherwise, RagDataSchema id will be generated by system. This value should be up to 63 characters, and valid characters are /a-z-/. The first character must be a letter, the last could be a letter or a number.

          Type : string

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.get

      Parameters :

        name

          Description : Required. The name of the RagDataSchema resource. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragDataSchemas/{rag_data_schema}`

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragDataSchemas/[^/]+$

          Location : path

          Required : Yes

      Path : v1beta1/{+name}

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas/{ragDataSchemasId}

      Parameter Order : name

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Description : Gets a RagDataSchema.

      HTTP Method : GET

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.batchCreate

      Description : Batch Create one or more RagDataSchemas

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas:batchCreate

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Parameter Order : parent

      Parameters :

        parent

          Type : string

          Description : Required. The resource name of the RagCorpus to create the RagDataSchemas in. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`

          Location : path

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+$

          Required : Yes

      HTTP Method : POST

      Path : v1beta1/{+parent}/ragDataSchemas:batchCreate

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.list

      HTTP Method : GET

      Description : Lists RagDataSchemas in a Location.

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Parameters :

        pageSize

          Format : int32

          Type : integer

          Location : query

          Description : Optional. The standard list page size. The maximum value is 100. If not specified, a default value of 100 will be used.

        pageToken

          Type : string

          Location : query

          Description : Optional. The standard list page token. Typically obtained via ListRagDataSchemasResponse.next_page_token of the previous VertexRagDataService.ListRagDataSchemas call.

        parent

          Required : Yes

          Location : path

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+$

          Description : Required. The resource name of the RagCorpus from which to list the RagDataSchemas. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas

      Parameter Order : parent

      Path : v1beta1/{+parent}/ragDataSchemas

  • aiplatform.projects.locations.ragCorpora.ragDataSchemas.batchDelete

      Description : Batch Deletes one or more RagDataSchemas

      HTTP Method : POST

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragDataSchemas:batchDelete

      Path : v1beta1/{+parent}/ragDataSchemas:batchDelete

      Parameters :

        parent

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+$

          Required : Yes

          Description : Required. The resource name of the RagCorpus from which to delete the RagDataSchemas. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}`

          Type : string

          Location : path

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Parameter Order : parent

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.batchCreate

      HTTP Method : POST

      Parameter Order : parent

      Description : Batch Create one or more RagMetadatas

      Parameters :

        parent

          Type : string

          Description : Required. The parent resource where the RagMetadata will be created. Format: `projects/{project_number}/locations/{location_id}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}`

          Required : Yes

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+$

          Location : path

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata:batchCreate

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+parent}/ragMetadata:batchCreate

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.patch

      HTTP Method : PATCH

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata/{ragMetadataId}

      Path : v1beta1/{+name}

      Parameter Order : name

      Description : Updates a RagMetadata.

      Parameters :

        name

          Location : path

          Required : Yes

          Type : string

          Description : Identifier. Resource name of the RagMetadata. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}/ragMetadata/{rag_metadata}`

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+/ragMetadata/[^/]+$

      Scopes : https://www.googleapis.com/auth/cloud-platform

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.create

      Description : Creates a RagMetadata.

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata

      Parameter Order : parent

      Path : v1beta1/{+parent}/ragMetadata

      HTTP Method : POST

      Parameters :

        parent

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+$

          Description : Required. The parent resource where this metadata will be created. Format: `projects/{project_number}/locations/{location_id}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}`

          Required : Yes

          Location : path

          Type : string

        ragMetadataId

          Description : Optional. The ID to use for the metadata, which will become the final component of the metadata's resource name if the user chooses to specify. Otherwise, metadata id will be generated by system. This value should be up to 63 characters, and valid characters are /a-z-/. The first character must be a letter, the last could be a letter or a number.

          Type : string

          Location : query

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.get

      Parameter Order : name

      Description : Gets a RagMetadata.

      Path : v1beta1/{+name}

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata/{ragMetadataId}

      Parameters :

        name

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+/ragMetadata/[^/]+$

          Location : path

          Type : string

          Description : Required. The name of the RagMetadata resource. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}/ragMetadata/{rag_metadata}`

          Required : Yes

      HTTP Method : GET

      Scopes : https://www.googleapis.com/auth/cloud-platform

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.list

      Path : v1beta1/{+parent}/ragMetadata

      Parameters :

        parent

          Required : Yes

          Location : path

          Description : Required. The resource name of the RagFile from which to list the RagMetadata. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}`

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+$

          Type : string

        pageSize

          Location : query

          Description : Optional. The standard list page size. The maximum value is 100. If not specified, a default value of 100 will be used.

          Type : integer

          Format : int32

        pageToken

          Description : Optional. The standard list page token. Typically obtained via ListRagMetadataResponse.next_page_token of the previous VertexRagDataService.ListRagMetadata call.

          Type : string

          Location : query

      Description : Lists RagMetadata in a RagFile.

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata

      Parameter Order : parent

      HTTP Method : GET

      Scopes : https://www.googleapis.com/auth/cloud-platform

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.batchDelete

      Parameters :

        parent

          Required : Yes

          Type : string

          Description : Required. The resource name of the RagFile from which to delete the RagMetadata. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}`

          Location : path

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+$

      Parameter Order : parent

      HTTP Method : POST

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata:batchDelete

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+parent}/ragMetadata:batchDelete

      Description : Batch Deletes one or more RagMetadata.

  • aiplatform.projects.locations.ragCorpora.ragFiles.ragMetadata.delete

      Parameter Order : name

      Path : v1beta1/{+name}

      Description : Deletes a RagMetadata.

      Scopes : https://www.googleapis.com/auth/cloud-platform

      HTTP Method : DELETE

      Flat Path : v1beta1/projects/{projectsId}/locations/{locationsId}/ragCorpora/{ragCorporaId}/ragFiles/{ragFilesId}/ragMetadata/{ragMetadataId}

      Parameters :

        name

          Required : Yes

          Description : Required. The name of the RagMetadata resource to be deleted. Format: `projects/{project}/locations/{location}/ragCorpora/{rag_corpus}/ragFiles/{rag_file}/ragMetadata/{rag_metadata}`

          Location : path

          Type : string

          Pattern : ^projects/[^/]+/locations/[^/]+/ragCorpora/[^/]+/ragFiles/[^/]+/ragMetadata/[^/]+$

  • aiplatform.reasoningEngines.feedbackEntries.operations.wait

      Path : v1beta1/{+name}:wait

      Parameter Order : name

      Description : Waits until the specified long-running operation is done or reaches at most a specified timeout, returning the latest state. If the operation is already done, the latest state is immediately returned. If the timeout specified is greater than the default HTTP/RPC timeout, the HTTP/RPC timeout is used. If the server does not support this method, it returns `google.rpc.Code.UNIMPLEMENTED`. Note that this method is on a best-effort basis. It may return the latest state before the specified timeout (including immediately), meaning even an immediate response is no guarantee that the operation is done.

      Flat Path : v1beta1/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}:wait

      Scopes : https://www.googleapis.com/auth/cloud-platform

      HTTP Method : POST

      Parameters :

        timeout

          Location : query

          Description : The maximum duration to wait before timing out. If left blank, the wait will be at most the time permitted by the underlying HTTP/RPC protocol. If RPC context deadline is also specified, the shorter one will be used.

          Type : string

          Format : google-duration

        name

          Type : string

          Description : The name of the operation resource to wait on.

          Required : Yes

          Pattern : ^reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Location : path

  • aiplatform.reasoningEngines.feedbackEntries.operations.get

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Description : Gets the latest state of a long-running operation. Clients can use this method to poll the operation result at intervals as recommended by the API service.

      Parameter Order : name

      Flat Path : v1beta1/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}

      Path : v1beta1/{+name}

      HTTP Method : GET

      Parameters :

        name

          Type : string

          Pattern : ^reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Description : The name of the operation resource.

          Required : Yes

          Location : path

  • aiplatform.reasoningEngines.feedbackEntries.operations.delete

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Path : v1beta1/{+name}

      HTTP Method : DELETE

      Parameter Order : name

      Flat Path : v1beta1/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}

      Description : Deletes a long-running operation. This method indicates that the client is no longer interested in the operation result. It does not cancel the operation. If the server doesn't support this method, it returns `google.rpc.Code.UNIMPLEMENTED`.

      Parameters :

        name

          Required : Yes

          Pattern : ^reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Description : The name of the operation resource to be deleted.

          Location : path

          Type : string

  • aiplatform.reasoningEngines.feedbackEntries.operations.cancel

      Description : Starts asynchronous cancellation on a long-running operation. The server makes a best effort to cancel the operation, but success is not guaranteed. If the server doesn't support this method, it returns `google.rpc.Code.UNIMPLEMENTED`. Clients can use Operations.GetOperation or other methods to check whether the cancellation succeeded or whether the operation completed despite cancellation. On successful cancellation, the operation is not deleted; instead, it becomes an operation with an Operation.error value with a google.rpc.Status.code of `1`, corresponding to `Code.CANCELLED`.

      Flat Path : v1beta1/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations/{operationsId}:cancel

      Path : v1beta1/{+name}:cancel

      Parameters :

        name

          Pattern : ^reasoningEngines/[^/]+/feedbackEntries/[^/]+/operations/[^/]+$

          Required : Yes

          Location : path

          Description : The name of the operation resource to be cancelled.

          Type : string

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Parameter Order : name

      HTTP Method : POST

  • aiplatform.reasoningEngines.feedbackEntries.operations.list

      Flat Path : v1beta1/reasoningEngines/{reasoningEnginesId}/feedbackEntries/{feedbackEntriesId}/operations

      Path : v1beta1/{+name}/operations

      Parameters :

        pageToken

          Description : The standard list page token.

          Location : query

          Type : string

        returnPartialSuccess

          Type : boolean

          Location : query

          Description : When set to `true`, operations that are reachable are returned as normal, and those that are unreachable are returned in the ListOperationsResponse.unreachable field. This can only be `true` when reading across collections. For example, when `parent` is set to `"projects/example/locations/-"`. This field is not supported by default and will result in an `UNIMPLEMENTED` error if set unless explicitly documented otherwise in service or product specific documentation.

        filter

          Type : string

          Description : The standard list filter.

          Location : query

        name

          Pattern : ^reasoningEngines/[^/]+/feedbackEntries/[^/]+$

          Description : The name of the operation's parent resource.

          Location : path

          Type : string

          Required : Yes

        pageSize

          Type : integer

          Description : The standard list page size.

          Format : int32

          Location : query

      HTTP Method : GET

      Scopes : https://www.googleapis.com/auth/cloud-platform

      Parameter Order : name

      Description : Lists operations that match the specified filter in the request. If the server doesn't support this method, it returns `UNIMPLEMENTED`.