in: query
name: sort_by
description: >-
  Field name existing within objects in `items` by which to sort the results (dot notation).
required: false
examples:
  'position.date':
    value: 'position.date'
  'position.current':
    value: 'position.current'
  'position.trend':
    value: 'position.trend'
schema:
  type: string