docs: def bearer_auth():
      """Prompts the user for authorization using bearer authentication.
      ---
      tags:
        - Auth
      parameters:
        - in: header
          name: Authorization
          schema:
            type: string
      produces:
        - application/json
      responses:
        200:
          description: Sucessful authentication.
        401:
          description: Unsuccessful authentication.
      """
      authorization = request.headers.get("Authorization")
      if not (authorization and authorization.startswith("Bearer ")):
          response = app.make_response("")
          response.headers["WWW-Authenticate"] = "Bearer"
          response.status_code = 401
          return response
      slice_start = len("Bearer ")
      token = authorization[slice_start:]
  
      return jsonify(authenticated=True, token=token)