send
Use this method when you need to tell the user that something is happening on the bot's side. The status is set for 5 seconds or less (when a message arrives from your bot, Telegram clients clear its typing status). Returns True on success. Example: The ImageBot needs some time to process a request and upload the image. Instead of sending a text message along the lines of “Retrieving image, please wait…”, the bot may use sendChatAction with action = upload_photo. The user will see a “sending photo” status for the bot. We only recommend using this method when a response from the bot will take a noticeable amount of time to arrive.
Use this method when you need to tell the user that something is happening on the bot's side. The status is set for 5 seconds or less (when a message arrives from your bot, Telegram clients clear its typing status). Returns True on success. Example: The ImageBot needs some time to process a request and upload the image. Instead of sending a text message along the lines of “Retrieving image, please wait…”, the bot may use sendChatAction with action = upload_photo. The user will see a “sending photo” status for the bot. We only recommend using this method when a response from the bot will take a noticeable amount of time to arrive.
Parameters
Unique identifier for the target chat or username of the target channel (in the format @channelusername)
Type of action to broadcast. Choose one, depending on what the user is about to receive: typing for text messages, upload_photo for photos, record_video or upload_video for videos, record_voice or upload_voice for voice notes, upload_document for general files, find_location for location data, record_video_note or upload_video_note for video notes.