in: query
name: artist_id
required: false
description: 'An optional `artist_id` query parameter.'
schema:
  $ref: '../schemas/properties/artist_id.yaml'
examples:
  'Michael Jackson - GRAS_4867':
    value: 'GRAS_4867'
  'Calvin Harris - GRAS_740645':
    value: 'GRAS_740645'
  '--':
    value: null