deleteFile
Deletes the file represented by url from the given channel.
Return
Executable async Call responsible for deleting a file.
Parameters
channelType
The channel type. ie messaging.
channelId
The channel id. ie 123.
url
The URL of the file to be deleted.
See also
Deletes a file not related to any channel.
Return
The empty Result object, or Result object with exception if the operation failed.
Executable async Call which completes with Result containing an instance of Unit if the file was successfully deleted.
Parameters
url
The URL of the file to be deleted.