docstr: Get dashboard's permanent link state.
  ---
  get:
    summary: Get dashboard's permanent link state
    parameters:
    - in: path
      schema:
        type: string
      name: key
    responses:
      200:
        description: Returns the stored state.
        content:
          application/json:
            schema:
              type: object
              properties:
                state:
                  type: object
                  description: The stored state
      400:
        $ref: '#/components/responses/400'
      401:
        $ref: '#/components/responses/401'
      404:
        $ref: '#/components/responses/404'
      422:
        $ref: '#/components/responses/422'
      500:
        $ref: '#/components/responses/500'
docstr_tok: ["Get","dashboard","'s","permanent","link","state",".","--","-","get",":","summary",":","Get","dashboard","'s","permanent","link","state","parameters",":","-","in",":","path","schema",":","type",":","string","name",":","key","responses",":","200",":","description",":","Returns","the","stored","state",".","content",":","application\/json",":","schema",":","type",":","object","properties",":","state",":","type",":","object","description",":","The","stored","state","400",":","$","ref",":","'","#","\/components\/responses\/400'","401",":","$","ref",":","'","#","\/components\/responses\/401'","404",":","$","ref",":","'","#","\/components\/responses\/404'","422",":","$","ref",":","'","#","\/components\/responses\/422'","500",":","$","ref",":","'","#","\/components\/responses\/500","'"]
code: def get(self, key: str) -> Response:
      """Get dashboard's permanent link state.
      ---
      get:
        summary: Get dashboard's permanent link state
        parameters:
        - in: path
          schema:
            type: string
          name: key
        responses:
          200:
            description: Returns the stored state.
            content:
              application/json:
                schema:
                  type: object
                  properties:
                    state:
                      type: object
                      description: The stored state
          400:
            $ref: '#/components/responses/400'
          401:
            $ref: '#/components/responses/401'
          404:
            $ref: '#/components/responses/404'
          422:
            $ref: '#/components/responses/422'
          500:
            $ref: '#/components/responses/500'
      """
      try:
          value = GetDashboardPermalinkCommand(key=key).run()
          if not value:
              return self.response_404()
          return self.response(200, **value)
      except DashboardAccessDeniedError as ex:
          return self.response(403, message=str(ex))
      except DashboardNotFoundError as ex:
          return self.response(404, message=str(ex))
  
file_path: superset/superset/dashboards/permalink/api.py
imports: import logging
  from flask import request, Response
  from flask_appbuilder.api import expose, protect, safe
  from marshmallow import ValidationError
  from superset.commands.dashboard.exceptions import DashboardAccessDeniedError, DashboardNotFoundError
  from superset.commands.dashboard.permalink.create import CreateDashboardPermalinkCommand
  from superset.commands.dashboard.permalink.get import GetDashboardPermalinkCommand
  from superset.constants import MODEL_API_RW_METHOD_PERMISSION_MAP
  from superset.dashboards.permalink.exceptions import DashboardPermalinkInvalidStateError
  from superset.dashboards.permalink.schemas import DashboardPermalinkStateSchema
  from superset.extensions import event_logger
  from superset.key_value.exceptions import KeyValueAccessDeniedError
  from superset.views.base_api import BaseSupersetApi, requires_json
label_desc: Use image node_id 2 for calling the DashboardPermalinkRestApi obj's underlying member method code with example usage: obj.get(key) and returns: self, self, self, self