Label Studio subpackage_tasks API

openapi: 3.1.0
info:
  title: API Reference subpackage_actions subpackage_tasks API
  version: 1.0.0
servers:
- url: http://localhost:8000
tags:
- name: subpackage_tasks
paths:
  /api/projects/{id}/imports/{import_pk}/:
    get:
      operationId: create-many-status
      summary: 'Get project import status '
      description: "\n            Poll the status of an asynchronous project import operation.\n            \n            **Usage:**\n            1. When you POST to `/api/projects/{project_id}/import`, you'll receive a response like `{\"import\": <import_id>}`\n            2. Use that `import_id` with this GET endpoint to check the import status\n            3. Poll this endpoint to see if the import has completed, is still processing, or has failed\n            4. **Import errors and failures will only be visible in this GET response**, not in the original POST request\n            \n            This endpoint returns detailed information about the import including task counts, status, and any error messages.\n        "
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: A unique integer value identifying this project import.
        required: true
        schema:
          type: integer
      - name: import_pk
        in: path
        required: true
        schema:
          type: integer
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProjectImport'
  /api/projects/{id}/tasks/:
    delete:
      operationId: delete-all-tasks
      summary: Delete all tasks
      description: Delete all tasks from a specific project.
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: A unique integer value identifying this project.
        required: true
        schema:
          type: integer
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Successful response
  /api/tasks/:
    get:
      operationId: list
      summary: List tasks
      description: 'Retrieve a paginated list of tasks. The response format varies based on the user''s role in the organization:

        - **Admin/Owner**: Full task details with all annotations, reviews, and metadata

        - **Reviewer**: Task details optimized for review workflow

        - **Annotator**: Task details filtered to show only user''s own annotations and assignments'
      tags:
      - subpackage_tasks
      parameters:
      - name: fields
        in: query
        description: Set to "all" if you want to include annotations and predictions in the response. Defaults to task_only
        required: false
        schema:
          $ref: '#/components/schemas/ApiTasksGetParametersFields'
      - name: include
        in: query
        description: Specify which fields to include in the response
        required: false
        schema:
          type: string
      - name: only_annotated
        in: query
        description: Filter to show only tasks that have annotations
        required: false
        schema:
          type: boolean
      - name: page
        in: query
        description: A page number within the paginated result set.
        required: false
        schema:
          type: integer
      - name: page_size
        in: query
        description: Number of results to return per page.
        required: false
        schema:
          type: integer
      - name: project
        in: query
        description: Project ID
        required: false
        schema:
          type: integer
      - name: query
        in: query
        description: 'Additional query to filter tasks. It must be JSON encoded string of dict containing one of the following parameters: {"filters": ..., "selectedItems": ..., "ordering": ...}. Check Data Manager > Create View > see data field for more details about filters, selectedItems and ordering.


          filters: dict with "conjunction" string ("or" or "and") and list of filters in "items" array. Each filter is a dictionary with keys: "filter", "operator", "type", "value". Read more about available filters

          Example: {"conjunction": "or", "items": [{"filter": "filter:tasks:completed_at", "operator": "greater", "type": "Datetime", "value": "2021-01-01T00:00:00.000Z"}]}

          selectedItems: dictionary with keys: "all", "included", "excluded". If "all" is false, "included" must be used. If "all" is true, "excluded" must be used.

          Examples: {"all": false, "included": [1, 2, 3]} or {"all": true, "excluded": [4, 5]}

          ordering: list of fields to order by. Currently, ordering is supported by only one parameter.

          Example: ["completed_at"]'
        required: false
        schema:
          type: string
      - name: resolve_uri
        in: query
        description: Resolve task data URIs using Cloud Storage
        required: false
        schema:
          type: boolean
      - name: review
        in: query
        description: Get tasks for review
        required: false
        schema:
          type: boolean
      - name: selectedItems
        in: query
        description: JSON string of selected task IDs for review workflow
        required: false
        schema:
          type: string
      - name: view
        in: query
        description: View ID
        required: false
        schema:
          type: integer
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedRoleBasedTaskList'
        '400':
          description: Bad request - invalid parameters
          content:
            application/json:
              schema:
                description: Any type
        '401':
          description: Unauthorized - authentication required
          content:
            application/json:
              schema:
                description: Any type
        '403':
          description: Forbidden - insufficient permissions
          content:
            application/json:
              schema:
                description: Any type
    post:
      operationId: create
      summary: Create a new task
      description: Create a new task
      tags:
      - subpackage_tasks
      parameters:
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '201':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LseTask'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LseTaskRequest'
  /api/tasks/{id}/:
    get:
      operationId: get
      summary: Get task
      description: Get task data, metadata, annotations and other attributes for a specific labeling task by task ID.
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: Task ID
        required: true
        schema:
          type: string
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RoleBasedTask'
    delete:
      operationId: delete
      summary: Delete task
      description: Delete a task in Label Studio. This action cannot be undone!
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: Task ID
        required: true
        schema:
          type: string
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Successful response
    patch:
      operationId: update
      summary: Update task
      description: Update the attributes of an existing labeling task.
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: Task ID
        required: true
        schema:
          type: string
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RoleBasedTask'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PatchedLseTaskRequest'
  /api/tasks/{id}/events/:
    post:
      operationId: create-event
      summary: Create task event
      description: "\n    Create a new task event to track user interactions and system events during annotation.\n\n    This endpoint is designed to receive events from the frontend labeling interface to enable\n    accurate lead time calculation and detailed annotation analytics.\n\n    ## Event Types\n\n    **Core Annotation Events:**\n    - `annotation_loaded` - When annotation interface is loaded\n    - `annotation_created` - When annotation is submitted\n    - `annotation_updated` - When annotation is modified\n    - `annotation_reviewed` - When annotation is reviewed\n\n    **User Activity Events:**\n    - `visibility_change` - When page visibility changes (tab switch, minimize)\n    - `idle_detected` - When user goes idle\n    - `idle_resumed` - When user returns from idle\n\n    **Interaction Events:**\n    - `region_finished_drawing` - When annotation region is completed\n    - `region_deleted` - When annotation regions are removed\n    - `hotkey_pressed` - When keyboard shortcuts are used\n\n    **Media Events:**\n    - `video_playback_start/end` - Video playback control\n    - `audio_playback_start/end` - Audio playback control\n    - `video_scrub` - Video timeline scrubbing\n\n    ## Usage\n\n    Events are automatically associated with the task specified in the URL path.\n    The current user is automatically set as the actor. Project and organization\n    are derived from the task context.\n\n    ## Example Request\n\n    ```json\n    {\n        \"event_key\": \"annotation_loaded\",\n        \"event_time\": \"2024-01-15T10:30:00Z\",\n        \"annotation\": 123,\n        \"meta\": {\n            \"annotation_count\": 5,\n            \"estimated_time\": 300\n        }\n    }\n    ```\n    "
      tags:
      - subpackage_tasks
      parameters:
      - name: id
        in: path
        description: Task ID to associate the event with
        required: true
        schema:
          type: integer
      - name: Authorization
        in: header
        description: 'The token (or API key) must be passed as a request header. You can find your user token on the User Account page in Label Studio. Example: <br><pre><code class="language-bash">curl https://label-studio-host/api/projects -H "Authorization: Token [your-token]"</code></pre>'
        required: true
        schema:
          type: string
      responses:
        '201':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaskEvent'
        '400':
          description: Bad request - validation errors
          content:
            application/json:
              schema:
                description: Any type
        '401':
          description: Unauthorized - authentication required
          content:
            application/json:
              schema:
                description: Any type
        '403':
          description: Forbidden - insufficient permissions
          content:
            application/json:
              schema:
                description: Any type
        '404':
          description: Not found - task does not exist
          content:
            application/json:
              schema:
                description: Any type
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TaskEventRequest'
components:
  schemas:
    LseTaskSerializerForReviewersDraftsItemsResultItems:
      type: object
      properties: {}
      title: LseTaskSerializerForReviewersDraftsItemsResultItems
    LseTaskUpdatedByItems:
      type: object
      properties: {}
      title: LseTaskUpdatedByItems
    LseTaskSerializerForReviewersPredictionsItemsModelRun:
      type: object
      properties: {}
      title: LseTaskSerializerForReviewersPredictionsItemsModelRun
    LseTaskSerializerForAnnotators:
      type: object
      properties:
        annotations:
          type: string
        annotations_results:
          type: string
        cancelled_annotations:
          type: integer
        comment_count:
          type: string
        comments:
          type: string
        created_at:
          type: string
          format: date-time
          description: Time a task was created
        data:
          type: object
          additionalProperties:
            description: Any type
          description: User imported or uploaded data for a task. Data is formatted according to the project label config. You can find examples of data for your project on the Import page in the Label Studio Data Manager UI.
        draft_exists:
          type: boolean
        drafts:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskSerializerForAnnotatorsDraftsItems'
          description: Drafts for this task
        id:
          type: integer
        predictions:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskSerializerForAnnotatorsPredictionsItems'
          description: Predictions for this task
        predictions_results:
          type: string
        predictions_score:
          type: number
          format: double
        reviews_rejected:
          type: integer
        state:
          type: string
        total_annotations:
          type: integer
        total_predictions:
          type: integer
        unresolved_comment_count:
          type: string
      required:
      - annotations
      - annotations_results
      - comment_count
      - comments
      - created_at
      - data
      - drafts
      - id
      - predictions
      - predictions_results
      - state
      - unresolved_comment_count
      description: Data Manager Task Serializer with FSM state support.
      title: LseTaskSerializerForAnnotators
    LseTaskPredictionsItemsModelRun:
      type: object
      properties: {}
      title: LseTaskPredictionsItemsModelRun
    LseTaskDraftsItemsResultItems:
      type: object
      properties: {}
      title: LseTaskDraftsItemsResultItems
    ProjectImport:
      type: object
      properties:
        annotation_count:
          type: integer
        commit_to_project:
          type: boolean
        could_be_tasks_list:
          type: boolean
        created_at:
          type:
          - string
          - 'null'
          format: date-time
          description: Creation time
        data_columns:
          description: Any type
        duration:
          type: integer
        error:
          type:
          - string
          - 'null'
        file_upload_ids:
          description: Any type
        finished_at:
          type:
          - string
          - 'null'
          format: date-time
          description: Complete or fail time
        found_formats:
          description: Any type
        id:
          type: integer
        preannotated_from_fields:
          oneOf:
          - description: Any type
          - type: 'null'
        prediction_count:
          type: integer
        project:
          type:
          - integer
          - 'null'
        return_task_ids:
          type: boolean
        status:
          $ref: '#/components/schemas/Status7bfEnum'
        task_count:
          type: integer
        task_ids:
          description: Any type
        tasks:
          oneOf:
          - description: Any type
          - type: 'null'
        updated_at:
          type:
          - string
          - 'null'
          format: date-time
          description: Updated time
        url:
          type:
          - string
          - 'null'
      required:
      - created_at
      - id
      - updated_at
      title: ProjectImport
    LseTaskSerializerForAnnotatorsPredictionsItemsResultItems:
      type: object
      properties: {}
      title: LseTaskSerializerForAnnotatorsPredictionsItemsResultItems
    LseTaskSerializerForAnnotatorsPredictionsItems:
      type: object
      properties:
        created_at:
          type: string
          format: date-time
        model:
          $ref: '#/components/schemas/LseTaskSerializerForAnnotatorsPredictionsItemsModel'
        model_run:
          $ref: '#/components/schemas/LseTaskSerializerForAnnotatorsPredictionsItemsModelRun'
        model_version:
          type: string
        project:
          type: integer
        result:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskSerializerForAnnotatorsPredictionsItemsResultItems'
        score:
          type: number
          format: double
        task:
          type: integer
        updated_at:
          type: string
          format: date-time
      title: LseTaskSerializerForAnnotatorsPredictionsItems
    LseTaskPredictionsItems:
      type: object
      properties:
        created_at:
          type: string
          format: date-time
        model:
          $ref: '#/components/schemas/LseTaskPredictionsItemsModel'
        model_run:
          $ref: '#/components/schemas/LseTaskPredictionsItemsModelRun'
        model_version:
          type: string
        project:
          type: integer
        result:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskPredictionsItemsResultItems'
        score:
          type: number
          format: double
        task:
          type: integer
        updated_at:
          type: string
          format: date-time
      title: LseTaskPredictionsItems
    LseTaskSerializerForAnnotatorsDraftsItemsResultItems:
      type: object
      properties: {}
      title: LseTaskSerializerForAnnotatorsDraftsItemsResultItems
    LseTaskAnnotatorsItems:
      type: object
      properties: {}
      title: LseTaskAnnotatorsItems
    LseTaskSerializerForReviewersDraftsItems:
      type: object
      properties:
        created_at:
          type: string
          format: date-time
        result:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskSerializerForReviewersDraftsItemsResultItems'
        updated_at:
          type: string
          format: date-time
      title: LseTaskSerializerForReviewersDraftsItems
    LseTask:
      type: object
      properties:
        agreement:
          type: string
        agreement_selected:
          type: string
        allow_skip:
          type:
          - boolean
          - 'null'
          description: Whether this task can be skipped. Set to False to make task unskippable.
        annotation_time:
          type: integer
          description: 'Calculate total annotation time for this task from MetricInTimeBucket records.

            Returns time in seconds.'
        annotations:
          type: string
        annotations_ids:
          type: string
        annotations_results:
          type: string
        annotators:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskAnnotatorsItems'
          description: Who annotated this task; each item includes user_id plus minimal profile fields for Data Manager display.
        annotators_count:
          type: integer
          description: The annotators_count is calculated as the number of users with annotations (can be repeated, so same as the number of annotations) + the number of assignees without annotations.
        avg_lead_time:
          type: number
          format: double
        cancelled_annotations:
          type: integer
        comment_authors:
          type: array
          items:
            type: object
            additionalProperties:
              description: Any type
        comment_authors_count:
          type: integer
        comment_count:
          type: integer
          description: Number of comments in the task including all annotations
        comments:
          type: string
        completed_at:
          type: string
          format: date-time
        created_at:
          type: string
          format: date-time
          description: Time a task was created
        data:
          type: object
          additionalProperties:
            description: Any type
          description: User imported or uploaded data for a task. Data is formatted according to the project label config. You can find examples of data for your project on the Import page in the Label Studio Data Manager UI.
        draft_exists:
          type: boolean
        drafts:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskDraftsItems'
          description: Drafts for this task
        file_upload:
          type: string
        ground_truth:
          type: boolean
        id:
          type: integer
        inner_id:
          type: integer
        is_labeled:
          type: boolean
          description: True if the number of annotations for this task is greater than or equal to the number of maximum_completions for the project
        last_comment_updated_at:
          type:
          - string
          - 'null'
          format: date-time
          description: When the last comment was updated
        meta:
          oneOf:
          - description: Any type
          - type: 'null'
          description: Meta is user imported (uploaded) data and can be useful as input for an ML Backend for embeddings, advanced vectors, and other info. It is passed to ML during training/predicting steps.
        overlap:
          type: integer
          description: Number of distinct annotators that processed the current task
        precomputed_agreement:
          type:
          - number
          - 'null'
          format: double
          description: Average agreement score for the task
        predictions:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskPredictionsItems'
          description: Predictions for this task
        predictions_model_versions:
          type: string
        predictions_results:
          type: string
        predictions_score:
          type: number
          format: double
        project:
          type:
          - integer
          - 'null'
          description: Project ID for this task
        review_time:
          type: integer
          description: 'Calculate total review time for this task from MetricInTimeBucket records.

            Returns time in seconds.'
        reviewed:
          type: boolean
        reviewers:
          type: array
          items:
            type: object
            additionalProperties:
              description: Any type
        reviewers_count:
          type: integer
        reviews_accepted:
          type: integer
        reviews_rejected:
          type: integer
        state:
          type: string
        storage_filename:
          type: string
        total_annotations:
          type: integer
        total_predictions:
          type: integer
        unresolved_comment_count:
          type: integer
          description: Number of unresolved comments in the task including all annotations
        updated_at:
          type: string
          format: date-time
          description: Last time a task was updated
        updated_by:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskUpdatedByItems'
          description: User IDs who updated this task
      required:
      - agreement
      - agreement_selected
      - annotation_time
      - annotations
      - annotations_ids
      - annotations_results
      - annotators
      - annotators_count
      - comment_authors
      - comment_authors_count
      - comments
      - created_at
      - data
      - drafts
      - file_upload
      - id
      - predictions
      - predictions_model_versions
      - predictions_results
      - review_time
      - reviewers
      - reviewers_count
      - state
      - storage_filename
      - updated_at
      - updated_by
      description: Data Manager Task Serializer with FSM state support.
      title: LseTask
    LseTaskRequest:
      type: object
      properties:
        allow_skip:
          type:
          - boolean
          - 'null'
          description: Whether this task can be skipped. Set to False to make task unskippable.
        cancelled_annotations:
          type: integer
          description: Number of total cancelled annotations for the current task
        comment_authors:
          type: array
          items:
            type: integer
          description: Users who wrote comments
        comment_count:
          type: integer
          description: Number of comments in the task including all annotations
        data:
          type: object
          additionalProperties:
            description: Any type
          description: User imported or uploaded data for a task. Data is formatted according to the project label config. You can find examples of data for your project on the Import page in the Label Studio Data Manager UI.
        file_upload:
          type:
          - integer
          - 'null'
          description: Uploaded file used as data source for this task
        inner_id:
          type:
          - integer
          - 'null'
          format: int64
          description: Internal task ID in the project, starts with 1
        is_labeled:
          type: boolean
          description: True if the number of annotations for this task is greater than or equal to the number of maximum_completions for the project
        last_comment_updated_at:
          type:
          - string
          - 'null'
          format: date-time
          description: When the last comment was updated
        meta:
          oneOf:
          - description: Any type
          - type: 'null'
          description: Meta is user imported (uploaded) data and can be useful as input for an ML Backend for embeddings, advanced vectors, and other info. It is passed to ML during training/predicting steps.
        overlap:
          type: integer
          description: Number of distinct annotators that processed the current task
        project:
          type:
          - integer
          - 'null'
          description: Project ID for this task
        total_annotations:
          type: integer
          description: Number of total annotations for the current task except cancelled annotations
        total_predictions:
          type: integer
          description: Number of total predictions for the current task
        unresolved_comment_count:
          type: integer
          description: Number of unresolved comments in the task including all annotations
        updated_by:
          type:
          - integer
          - 'null'
          description: Last annotator or reviewer who updated this task
      required:
      - data
      description: Task Serializer with project scheme configs validation
      title: LseTaskRequest
    ApiTasksGetParametersFields:
      type: string
      enum:
      - all
      - task_only
      title: ApiTasksGetParametersFields
    LseTaskSerializerForReviewersUpdatedByItems:
      type: object
      properties: {}
      title: LseTaskSerializerForReviewersUpdatedByItems
    LseTaskPredictionsItemsModel:
      type: object
      properties: {}
      title: LseTaskPredictionsItemsModel
    RoleBasedTask:
      oneOf:
      - $ref: '#/components/schemas/LseTask'
      - $ref: '#/components/schemas/LseTaskSerializerForReviewers'
      - $ref: '#/components/schemas/LseTaskSerializerForAnnotators'
      title: RoleBasedTask
    PaginatedRoleBasedTaskList:
      type: object
      properties:
        tasks:
          type: array
          items:
            $ref: '#/components/schemas/RoleBasedTask'
        total:
          type: integer
          description: Total number of tasks
        total_annotations:
          type: integer
          description: Total number of annotations
        total_predictions:
          type: integer
          description: Total number of predictions
      required:
      - tasks
      - total
      - total_annotations
      - total_predictions
      title: PaginatedRoleBasedTaskList
    LseTaskSerializerForReviewersPredictionsItems:
      type: object
      properties:
        created_at:
          type: string
          format: date-time
        model:
          $ref: '#/components/schemas/LseTaskSerializerForReviewersPredictionsItemsModel'
        model_run:
          $ref: '#/components/schemas/LseTaskSerializerForReviewersPredictionsItemsModelRun'
        model_version:
          type: string
        project:
          type: integer
        result:
          type: array
          items:
            $ref: '#/components/schemas/LseTaskSerializerForReviewersPredictionsItemsResultItems'
        score:
          type: number
          format: double
        task:
          type: integer
        updated_at:
          type: string
          format: date-time
      title: LseTaskSerializerForReviewersPredictionsItems
    Status7bfEnum:
      type: string
      enum:
      - created
      - in_progress
      - failed
      - completed
      description: '* `created` - Created

        * `in_progress` - In progress

        * `failed` - Failed

        * `completed` - Completed'
      title: Status7bfEnum
    LseTaskSerializerForReviewers:
      type: object
      properties:
        agreement:
          type: string
        agreement_selected:
          type: string
        allow_skip:
          type:
          - boolean
          - 'null'
          description: Wheth

# --- truncated at 32 KB (45 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/label-studio/refs/heads/main/openapi/label-studio-subpackage-tasks-api-openapi.yml