get:
  tags:
    - topics
  summary: Get a topic's teaser post
  parameters:
    - name: topic_id
      in: path
      required: true
      schema:
        type: string
      example: 1
  responses:
    "200":
      description: "A JSON object containing the teaser post for a topic"
      content:
        application/json:
          schema:
            $ref: ../../../components/schemas/PostsObject.yaml#/PostsObject