Cognite Workflow executions API
The Workflow executions API from Cognite — 5 operation(s) for workflow executions.
OpenAPI Specification
openapi: 3.1.0
info:
title: Cognite 3D Asset Mapping Workflow executions API
description: "# Introduction\nThis is the reference documentation for the Cognite API with\nan overview of all the available methods.\n\n# Postman\nSelect the **Download** button to download our OpenAPI specification to get started.\n\nTo import your data into Postman, select **Import**, and the Import modal opens.\nYou can import items by dragging or dropping files or folders. You can choose how to import your API and manage the import settings in **View Import Settings**.\n\nIn the Import Settings, set the **Folder organization** to **Tags**, select\n**Enable optional parameters** to turn off the settings, and select **Always inherit authentication** to turn on the settings. Select **Import**.\n\nSet the Authorization to **Oauth2.0**. By default, the settings are for Open Industrial Data. Navigate to [Cognite Hub](https://hub.cognite.com/open-industrial-data-211) to understand how to get the credentials for use in Postman.\n\nFor more information, see [Getting Started with Postman](https://developer.cognite.com/dev/guides/postman/).\n\n# Pagination\nMost resource types can be paginated, indicated by the field `nextCursor` in the response.\nBy passing the value of `nextCursor` as the cursor you will get the next page of `limit` results.\nNote that all parameters except `cursor` has to stay the same.\n\n# Parallel retrieval\nAs general guidance, Parallel Retrieval is a technique that should be used when due to query complexity, retrieval of data in a single request is significantly slower than it would otherwise be for a simple request. Parallel retrieval does not act as a speed multiplier on optimally running queries. By parallelizing such requests, data retrieval performance can be tuned to meet the client application needs. \n\nCDF supports parallel retrieval through the `partition` parameter, which has the format `m/n` where `n` is the amount of partitions you would like to split the entire data set into.\nIf you want to download the entire data set by splitting it into 10 partitions, do the following in parallel with `m` running from 1 to 10:\n - Make a request to `/events` with `partition=m/10`.\n - Paginate through the response by following the cursor as explained above. Note that the `partition` parameter needs to be passed to all subqueries.\n\nProcessing of parallel retrieval requests is subject to concurrency quota availability. The request returns the `429` response upon exceeding concurrency limits. See the Request throttling chapter below.\n\nTo prevent unexpected problems and to maximize read throughput, you should at most use 10 partitions. \nSome CDF resources will automatically enforce a maximum of 10 partitions.\nFor more specific and detailed information, please read the ```partition``` attribute documentation for the CDF resource you're using. \n\n# Requests throttling\nCognite Data Fusion (CDF) returns the HTTP `429` (too many requests) response status code when project capacity exceeds the limit.\n\nThe throttling can happen:\n - If a user or a project sends too many (more than allocated) concurrent requests.\n - If a user or a project sends a too high (more than allocated) rate of requests in a given amount of time.\n\nCognite recommends using a retry strategy based on truncated exponential backoff to handle sessions with HTTP response codes 429.\n\nCognite recommends using a reasonable number (up to 10) of `Parallel retrieval` partitions.\n\nFollowing these strategies lets you slow down the request frequency to maximize productivity without having to re-submit/retry failing requests.\n\nSee more [here](https://docs.cognite.com/dev/concepts/resource_throttling).\n\n# API versions\n## Version headers\nThis API uses calendar versioning, and version names follow the `YYYYMMDD` format.\nYou can find the versions currently available by using the version selector at the top of this page.\n\nTo use a specific API version, you can pass the `cdf-version: $version` header along with your requests to the API.\n\n## Beta versions\nThe beta versions provide a preview of what the stable version will look like in the future.\nBeta versions contain functionality that is reasonably mature, and highly likely to become a part of the stable API.\n\nBeta versions are indicated by a `-beta` suffix after the version name. For example, the beta version header for the\n2023-01-01 version is then `cdf-version: 20230101-beta`.\n\n## Alpha versions\nAlpha versions contain functionality that is new and experimental, and not guaranteed to ever become a part of the stable API.\nThis functionality presents no guarantee of service, so its use is subject to caution.\n\nAlpha versions are indicated by an `-alpha` suffix after the version name. For example, the alpha version header for\nthe 2023-01-01 version is then `cdf-version: 20230101-alpha`."
version: v1
contact:
name: Cognite Support
url: https://support.cognite.com
email: support@cognite.com
servers:
- url: https://{cluster}.cognitedata.com/api/v1/projects/{project}
description: The URL for the CDF cluster to connect to
variables:
cluster:
enum:
- api
- az-tyo-gp-001
- az-eastus-1
- az-power-no-northeurope
- westeurope-1
- asia-northeast1-1
- gc-dsm-gp-001
default: api
description: The CDF cluster to connect to
project:
default: publicdata
description: The CDF project name.
security:
- oidc-token:
- https://{cluster}.cognitedata.com/.default
- oauth2-client-credentials:
- https://{cluster}.cognitedata.com/.default
- oauth2-open-industrial-data:
- https://api.cognitedata.com/.default
- oauth2-auth-code:
- https://{cluster}.cognitedata.com/.default
tags:
- name: Workflow executions
paths:
/workflows/{workflowExternalId}/versions/{version}/run:
parameters:
- name: workflowExternalId
in: path
required: true
schema:
$ref: '#/components/schemas/WorkflowExternalId'
- name: version
in: path
required: true
schema:
$ref: '#/components/schemas/Version'
post:
operationId: TriggerRunOfSpecificVersionOfWorkflow
summary: Run a workflow
description: '
> **Required capabilities:** `workflowOrchestrationACL:WRITE`
Start an execution of a specific version of a workflow.'
tags:
- Workflow executions
x-capability:
- workflowOrchestrationACL:WRITE
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
authentication:
$ref: '#/components/schemas/Authentication'
input:
$ref: '#/components/schemas/ExecutionInput'
metadata:
$ref: '#/components/schemas/metadata'
required:
- authentication
responses:
'202':
description: Information about the workflow execution
content:
application/json:
schema:
$ref: '#/components/schemas/WorkflowExecutionResponse'
x-code-samples:
- lang: Python
label: Python SDK
source: "from cognite.client.data_classes import WorkflowTask, FunctionTaskParameters\ntask = WorkflowTask(\n external_id=\"my_workflow-task1\",\n parameters=FunctionTaskParameters(\n external_id=\"cdf_deployed_function:my_function\",\n data={\"workflow_data\": \"${workflow.input}\"}))\n\nres = client.workflows.executions.run(\"foo\", \"1\")\n\nres = client.workflows.executions.run(\"foo\", \"1\", input={\"a\": 1, \"b\": 2})\n\nimport os\nfrom cognite.client.data_classes import ClientCredentials\ncredentials = ClientCredentials(\"my-client-id\", os.environ[\"MY_CLIENT_SECRET\"])\nres = client.workflows.executions.run(\"foo\", \"1\", client_credentials=credentials)\n"
/workflows/executions/list:
post:
operationId: ListWorkflowExecutions
summary: Filter workflow executions
description: '
> **Required capabilities:** `workflowOrchestrationACL:READ`
List workflow executions matching a given filter.'
tags:
- Workflow executions
x-capability:
- workflowOrchestrationACL:READ
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/ListExecutionsQuery'
responses:
'200':
description: Filtered list of workflow executions
content:
application/json:
schema:
properties:
items:
type: array
maxItems: 1000
items:
$ref: '#/components/schemas/WorkflowExecutionResponse'
nextCursor:
$ref: '#/components/schemas/nextCursor'
required:
- items
x-code-samples:
- lang: Python
label: Python SDK
source: "res = client.workflows.executions.list((\"my_workflow\", \"1\"))\n\nfrom cognite.client.utils import timestamp_to_ms\nres = client.workflows.executions.list(\n created_time_start=timestamp_to_ms(\"1d-ago\"))\n"
/workflows/executions/{executionId}:
parameters:
- name: executionId
in: path
required: true
schema:
$ref: '#/components/schemas/WorkflowExecutionId'
get:
operationId: ExecutionOfSpecificRunOfWorkflow
summary: Retrieve workflow execution details
description: '
> **Required capabilities:** `workflowOrchestrationACL:READ`
Retrieve detailed information about a specific workflow execution.'
tags:
- Workflow executions
x-capability:
- workflowOrchestrationACL:READ
responses:
'200':
description: Details of a workflow execution
content:
application/json:
schema:
$ref: '#/components/schemas/WorkflowExecution'
x-code-samples:
- lang: Python
label: Python SDK
source: 'res = client.workflows.executions.retrieve_detailed("000560bc-9080-4286-b242-a27bb4819253")
res = client.workflows.executions.list()
res = client.workflows.executions.retrieve_detailed(res[0].id)
'
/workflows/executions/{executionId}/cancel:
post:
operationId: WorkflowExecutionCancellation
summary: Cancel a workflow execution
description: '
> **Required capabilities:** `workflowOrchestrationACL:WRITE`
Stops the specified execution from starting new workflow tasks and sets the workflow execution status to `TERMINATED`. Already running tasks will be marked as CANCELED. Note that the actions taken by the canceled tasks won''t be stopped, and these need to be canceled separately if desired. For example, to cancel a running transformation, use the [/transformations/cancel](#/Transformations/postApiV1ProjectsProjectTransformationsCancel) endpoint.'
tags:
- Workflow executions
x-capability:
- workflowOrchestrationACL:WRITE
parameters:
- name: executionId
in: path
required: true
schema:
$ref: '#/components/schemas/WorkflowExecutionId'
requestBody:
required: false
content:
application/json:
schema:
$ref: '#/components/schemas/CancelExecution'
responses:
'200':
description: Updated workflow execution
content:
application/json:
schema:
$ref: '#/components/schemas/WorkflowExecutionResponse'
'404':
$ref: '#/components/responses/ErrorResponse'
x-code-samples:
- lang: Python
label: Python SDK
source: 'res = client.workflows.executions.run("foo", "1")
client.workflows.executions.cancel(id="foo", reason="test cancellation")
'
/workflows/executions/{executionId}/retry:
post:
operationId: WorkflowExecutionRetry
summary: Retry workflow execution
description: '
> **Required capabilities:** `workflowOrchestrationACL:WRITE`
This endpoint restarts a previously failed, timed out, or terminated workflow execution by retrying tasks that did not complete successfully. It aims to resume execution activity from the point(s) of failure.
Behavior of the retry operation:
- Targeted Task Retry: Only retries tasks that have stopped in a terminal state such as `CANCELED`, `FAILED`, `FAILED_WITH_TERMINAL_ERROR`, and `TIMED_OUT`. Optional tasks are not retried.
- Subworkflows and Dynamic Tasks: When a failure occurs within a subworkflow or as part of a dynamic task, only the individual nested tasks that failed are retried. The subworkflow or dynamic task container itself is not retried.
- Retry Limits: Tasks that have reached or exceeded their designated retry limits will not have their retry counts reset to zero. Instead, each retry request permits these tasks a single additional retry.
'
tags:
- Workflow executions
x-capability:
- workflowOrchestrationACL:WRITE
parameters:
- name: executionId
in: path
required: true
schema:
$ref: '#/components/schemas/WorkflowExecutionId'
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/RetryExecution'
responses:
'200':
description: Updated workflow execution
content:
application/json:
schema:
$ref: '#/components/schemas/WorkflowExecutionResponse'
'404':
$ref: '#/components/responses/ErrorResponse'
components:
schemas:
TaskDepends:
type: object
properties:
externalId:
$ref: '#/components/schemas/CogniteExternalId'
required:
- externalId
TaskExecution:
title: Task Execution
type: object
properties:
id:
$ref: '#/components/schemas/TaskExecutionId'
externalId:
$ref: '#/components/schemas/TaskExternalId'
parentTaskExternalId:
anyOf:
- $ref: '#/components/schemas/TaskExternalId'
- type: 'null'
description: The external ID of the parent task when this task is part of a dynamic task or subworkflow.
status:
type: string
enum:
- IN_PROGRESS
- CANCELED
- FAILED
- FAILED_WITH_TERMINAL_ERROR
- COMPLETED
- COMPLETED_WITH_ERRORS
- SCHEDULED
- TIMED_OUT
- SKIPPED
taskType:
$ref: '#/components/schemas/TaskType'
startTime:
$ref: '#/components/schemas/EpochTimestamp'
endTime:
$ref: '#/components/schemas/EpochTimestamp'
input:
description: The input to the task with the references present in the definition resolved.
oneOf:
- $ref: '#/components/schemas/FunctionTaskParameters'
- $ref: '#/components/schemas/TransformationTaskParameters'
- $ref: '#/components/schemas/CdfTaskParameters'
- $ref: '#/components/schemas/DynamicTaskParameters'
- $ref: '#/components/schemas/SimulatorInput'
output:
oneOf:
- $ref: '#/components/schemas/FunctionTaskOutput'
- $ref: '#/components/schemas/TransformationTaskOutput'
- $ref: '#/components/schemas/CdfTaskOutput'
- $ref: '#/components/schemas/DynamicTaskOutput'
- $ref: '#/components/schemas/SimulatorTaskOutput'
reasonForIncompletion:
$ref: '#/components/schemas/ReasonForIncompletion'
required:
- id
- externalId
- status
- taskType
- input
- output
CdfTaskOutput:
title: CDF Task Output
type: object
properties:
response:
oneOf:
- type: string
- type: object
description: The body of the response. Will be a a JSON object if content-type is application/json, otherwise it will be a string.
statusCode:
type: integer
description: The HTTP status code of the response.
limit:
type: integer
minimum: 1
maximum: 1000
default: 100
description: The maximum number of results to return.
CogniteExternalId:
description: The external ID provided by the client. Must be unique for the resource type.
type: string
maxLength: 255
example: my.known.id
Reference:
type: string
description: 'A Reference is an expression that allows dynamically injecting input to a task during execution. References can be used to reference the input of the Workflow, the output of a previous task in the Workflow, or the input of a previous task in the Workflow. Note that the injected value must be valid in the context of the property it is injected into.
Example Task reference: ${myTaskExternalId.output.someKey} Example Workflow input reference: ${workflow.input.myKey}'
RetryExecution:
title: Workflow retry request
type: object
properties:
authentication:
$ref: '#/components/schemas/Authentication'
required:
- authentication
TransformationTaskOutput:
title: Transformation Task Output
type: object
properties:
jobId:
type: integer
format: int64
description: Job ID of the Transformation called.
Version:
type: string
description: Identifier for a version. Must be unique for the workflow. No trailing or leading whitespace and no null characters allowed.
maxLength: 255
SimulatorTaskParameters:
title: Simulation Task Parameters
type: object
description: Parameters for the Simulation run task type.
properties:
simulation:
type: object
properties:
routineExternalId:
description: The external id of the routine to be executed.
oneOf:
- $ref: '#/components/schemas/CogniteExternalId'
runTime:
anyOf:
- type: integer
- type: 'null'
title: RunTime
description: Run time in milliseconds. Reference timestamp used for data pre-processing and data sampling.
inputs:
type: array
maxItems: 200
minItems: 0
description: List of input overrides
items:
$ref: '#/components/schemas/SimulatorInput'
required:
- routineExternalId
Error:
type: object
required:
- code
- message
description: Cognite API error.
properties:
code:
type: integer
description: HTTP status code.
format: int32
example: 401
message:
type: string
description: Error message.
example: Could not authenticate.
missing:
type: array
description: List of lookup objects that do not match any results.
items:
type: object
additionalProperties: true
duplicated:
type: array
description: List of objects that are not unique.
items:
type: object
additionalProperties: true
FunctionTaskParameters:
title: Function Task Parameters
type: object
description: Parameters for the Cognite Function task type.
properties:
function:
type: object
properties:
externalId:
description: The external id of the Cognite Function in the project.
oneOf:
- $ref: '#/components/schemas/CogniteExternalId'
- $ref: '#/components/schemas/Reference'
data:
description: Input data that will be passed to the Cognite Function. Limited to 100KB in size.
oneOf:
- type: object
example:
key1: value1
key2: value2
maxLength: 100000
- $ref: '#/components/schemas/Reference'
required:
- externalId
isAsyncComplete:
type: boolean
default: false
description: "Defines if the execution of the task should be completed asynchronously.\n\n - If `false`, the status of the task will be set to `COMPLETED` when the Cognite Function call completes successfully.\\\n - If `true`, the task status will remain `IN_PROGRESS` even when the Cognite Function call completes successfully.\\\n It will then wait for an external process to update the task status directly using the task update endpoint.\\\n The task id required for the callback to update the task status is included in the input data of the Function with key \"cogniteOrchestrationTaskId\"."
CdfTaskParameters:
title: CDF Task Parameters
type: object
description: Parameters for the CDF Request task type, which can be used to make a request to any CDF API.
properties:
cdfRequest:
type: object
properties:
resourcePath:
description: 'The path of the request. The path should be prefixed by `{cluster}.cognitedata.com/api/v1/project/{project}` based on the relevant cluster and project.
Example: to list TimeSeries, the resourcePath would be `{cluster}.cognitedata.com/api/v1/project/{project}/timeseries/list`.
'
oneOf:
- type: string
maxLength: 128
- $ref: '#/components/schemas/Reference'
queryParameters:
oneOf:
- type: object
additionalProperties:
type: string
maxLength: 50
maxItems: 5
- $ref: '#/components/schemas/Reference'
method:
oneOf:
- type: string
enum:
- POST
- GET
- PUT
- $ref: '#/components/schemas/Reference'
body:
description: The body of the request. Limited to 100KB in size.
oneOf:
- type: object
maxLength: 100000
- $ref: '#/components/schemas/Reference'
requestTimeoutInMillis:
oneOf:
- type: number
default: 10000
minimum: 100
- $ref: '#/components/schemas/Reference'
cdfVersionHeader:
description: 'Optional CDF API version header. Set to `alpha` or `beta` to access alpha or beta CDF API endpoints.
'
type: string
enum:
- alpha
- beta
required:
- resourcePath
- method
nextCursor:
description: Cursor to get the next page of results. If not present, no more results are available.
type: string
example: 4zj0Vy2fo0NtNMb229mI9r1V3YG5NBL752kQz1cKtwo
ListExecutionsFilter:
title: List Executions Filter
type: object
properties:
workflowFilters:
type: array
description: Allows filtering executions by their workflows (and optionally version identifiers). If no workflowFilters are specified, all executions for all workflows will be included, ordered by createdTime.
items:
$ref: '#/components/schemas/WorkflowFilter'
minItems: 1
maxItems: 100
createdTimeStart:
type: integer
minimum: 0
description: epoch timestamp in milliseconds
createdTimeEnd:
type: integer
minimum: 0
description: epoch timestamp in milliseconds
status:
type: array
items:
$ref: '#/components/schemas/WorkflowStatus'
description: workflow execution status
uniqueItems: true
WorkflowExecutionId:
type: string
format: uuid
description: UUIDv4 identifier for a workflow execution.
maxLength: 36
minLength: 36
example: 059edaa4-a17a-4102-910e-2c3591500cce
SimulatorInputsUnit:
type: object
properties:
name:
type: string
description: Name of the unit.
WorkflowExternalId:
type: string
description: Identifier for a workflow. Must be unique for the project. No trailing or leading whitespace and no null characters allowed.
maxLength: 255
TaskExternalId:
type: string
description: Identifier for the task. Must be unique within the version. No trailing or leading whitespace and no null characters allowed. Task external IDs cannot be exactly 'workflow' or start with '__' (double underscore) as these are reserved.
maxLength: 255
SimulatorTaskOutput:
title: Simulator Task Output
description: Simulation run execution results.
type: object
properties:
runId:
type: integer
format: int64
description: The ID of the simulation run instance.
logId:
type: integer
format: int64
description: The log ID of the simulation run.
statusMessage:
type: string
description: The status message of the simulation run instance.
TaskExecutionId:
type: string
description: UUIDv4 identifier for the execution of a workflow task.
minLength: 36
maxLength: 36
WorkflowExecution:
title: Workflow Execution
type: object
properties:
id:
$ref: '#/components/schemas/WorkflowExecutionId'
workflowExternalId:
$ref: '#/components/schemas/WorkflowExternalId'
workflowDefinition:
$ref: '#/components/schemas/WorkflowDefinitionResponse'
version:
$ref: '#/components/schemas/Version'
status:
$ref: '#/components/schemas/WorkflowStatus'
engineExecutionId:
$ref: '#/components/schemas/EngineExecutionId'
executedTasks:
type: array
items:
$ref: '#/components/schemas/TaskExecution'
input:
$ref: '#/components/schemas/ExecutionInput'
metadata:
$ref: '#/components/schemas/metadata'
createdTime:
$ref: '#/components/schemas/EpochTimestamp'
startTime:
$ref: '#/components/schemas/EpochTimestamp'
endTime:
$ref: '#/components/schemas/EpochTimestamp'
reasonForIncompletion:
$ref: '#/components/schemas/ReasonForIncompletion'
required:
- id
- workflowExternalId
- workflowDefinition
- status
- engineExecutionId
- createdTime
- executedTasks
- metadata
WorkflowFilter:
type: object
description: If the version is not specified, all versions for the workflow will be included, ordered by createdTime.
properties:
externalId:
$ref: '#/components/schemas/WorkflowExternalId'
version:
$ref: '#/components/schemas/Version'
required:
- externalId
ReasonForIncompletion:
type: string
description: Human-readable reason for terminal failure of a workflow task.
EpochTimestamp:
description: The number of milliseconds since 00:00:00 Thursday, 1 January 1970, Coordinated Universal Time (UTC), minus leap seconds.
type: integer
minimum: 0
format: int64
example: 1730204346000
metadata:
type: object
maxProperties: 10
additionalProperties:
type: string
maxLength: 255
description: 'Custom, application-specific metadata. String key -> String value.
Keys have a maximum length of 32 characters, values a maximum of 255,
and there can be a maximum of 10 key-value pairs.
'
WorkflowStatus:
type: string
enum:
- RUNNING
- COMPLETED
- FAILED
- TIMED_OUT
- TERMINATED
TransformationTaskParameters:
title: Transformation Task Parameters
type: object
properties:
transformation:
type: object
description: Parameters for the CDF Transformation task type.
properties:
externalId:
description: The external id of the Transformation in the project.
oneOf:
- $ref: '#/components/schemas/CogniteExternalId'
- $ref: '#/components/schemas/Reference'
concurrencyPolicy:
type: string
enum:
- fail
- waitForCurrent
- restartAfterCurrent
default: fail
description: 'Determines the behavior of the task if the Transformation is already running.
- fail: The task fails if another instance of the Transformation is currently running.
- waitForCurrent: The task will pause and wait for the already running Transformation to complete. Once completed, the task is completed. This mode is useful for preventing redundant Transformation runs.
- restartAfterCurrent: The task waits for the ongoing Transformation to finish. After completion, the task restarts the Transformation. This mode ensures that the most recent data can be used by following tasks.
'
useTransformationCredentials:
type: boolean
default: false
description: 'If set to `true`, the transformation will run using the client credentials configured on the transformation.
If set to `false`, the transformation will run using the client credentials used to trigger the workflow.
'
required:
- externalId
EngineExecutionId:
type: string
format: uuid
description: Additional UUIDv4 identifier for an execution. Useful for Cognite support to diagnose issues.
minLength: 36
maxLength: 36
SimulatorInput:
type: object
properties:
referenceId:
type: string
description: Reference id of the value to override
value:
anyOf:
- type: string
maxLength: 1024
minLength: 1
- type: number
- items:
type: string
type: array
maxItems: 200
minItems: 1
- items:
type: number
type: array
maxItems: 200
minItems: 1
title: Value
description: Override the value used for a simulation run
unit:
description: Override the unit of the value
anyOf:
- $ref: '#/components/schemas/SimulatorInputsUnit'
- type: 'null'
required:
- referenceId
- value
SubworkflowTaskParameters:
title: Subworkflow Task Parameters
type: object
properties:
subworkflow:
oneOf:
- type: object
properties:
tasks:
description: 'A list of tasks with their inputs and interdependencies. Similar to the way tasks are defined in a workflow definition.
Note: subworkflows cannot contain dynamic tasks or nested subworkflows
'
type: array
items:
$ref: '#/components/schemas/TaskDefinition'
maxItems: 100
minItems: 1
required:
- tasks
- type: object
description: 'Run another workflow embedded as a subworkflow. The tasks within the subworkflow will count towards the limit on total number of tasks in a workflow.
Note: the referenced subworkflow cannot contain dynamic tasks or nested subworkflows
'
properties:
workflowExternalId:
type: string
description: External ID of the referenced workflow
version:
type: string
description: Version of the referenced workflow
required:
- workflowExternalId
- versi
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