Create a new toot. A required parameter are a `mastodon` resource with an accessToken and "status" (text content). Optional parameters are an array of media files (base64 encoded), a boolean flag "sensitive", a string "spoiler_text", a string "inReplyToId", an ENUM["public","unlisted","private","direct"] "visibility", an ISO 8601 datetime "scheduledAt" and an ISO 639 language code "language". It should return the JSON object that the API responds.