{"type":"rich","version":1.0,"title":"Cancellable promises","width":385,"html":"<a href=\"https://asciinema.org/a/321150\" target=\"_blank\"><img alt=\"Cancellable promises\" src=\"https://asciinema.org/a/321150.png\" width=\"385\"></a>","height":408,"author_name":"gibatronic","author_url":"https://asciinema.org/~gibatronic","provider_name":"asciinema","provider_url":"https://asciinema.org/","thumbnail_height":408,"thumbnail_url":"https://asciinema.org/a/321150.png","thumbnail_width":385}