DOCUMENTATION:
  name: filter3
  version_added: "1.9"
  short_description: Does nothing
  description:
    - Really, does nothing
  notes:
    - This is a test filter
  positional: _input
  options:
    _input:
      description: the input
      required: true

EXAMPLES: ''
RETURN:
  _value:
    description: The input
