openapi: 3.0.0
info:
  title: 'Parameter Content Scratch'
  version: '1.0'
paths:
  /api/endpoint:
    get:
      tags:
        - endpoints
      summary: 'An API endpoint.'
      description: 'An endpoint'
      operationId: endpoint
      parameters:
        -
          name: filter
          in: query
          content:
            application/json:
              schema:
                properties:
                  type: { type: string }
                  color: { type: string }
                type: object
      responses:
        '200':
          description: OK
