+Exceptions: Failure, InvalidNumber, UntrustedIdentity
+
+sendMessage(message<s>, attachments<as>, recipient<s>) -> timestamp<x>::
+sendMessage(message<s>, attachments<as>, recipients<as>) -> timestamp<x>::
+* message : Text to send (can be UTF8)
+* attachments : String array of filenames to send as attachments (passed as filename, so need to be readable by the user signal-cli is running under)
+* recipient : Phone number of a single recipient
+* recipients : String array of phone numbers
+* timestamp : Long, can be used to identify the corresponding Signal reply
+
+Depending on the type of the recipient field this sends a message to one or multiple recipients.
+
+Exceptions: AttachmentInvalid, Failure, InvalidNumber, UntrustedIdentity
+
+sendMessageReaction(emoji<s>, remove<b>, targetAuthor<s>, targetSentTimestamp<x>, recipient<s>) -> timestamp<x>::
+sendMessageReaction(emoji<s>, remove<b>, targetAuthor<s>, targetSentTimestamp<x>, recipients<as>) -> timestamp<x>::
+* emoji : Unicode grapheme cluster of the emoji
+* remove : Boolean, whether a previously sent reaction (emoji) should be removed
+* targetAuthor : String with the phone number of the author of the message to which to react
+* targetSentTimestamp : Long representing timestamp of the message to which to react
+* recipient : String with the phone number of a single recipient
+* recipients : Array of strings with phone numbers, should there be more recipients
+* timestamp : Long, can be used to identify the corresponding Signal reply
+
+Depending on the type of the recipient(s) field this sends a reaction to one or multiple recipients.
+
+Exceptions: Failure, InvalidNumber
+
+sendPaymentNotification(receipt<ay>, note<s>, recipient<s>) -> timestamp<x>::
+* receipt : Byte array with the payment receipt blob
+* note : String with a note for the payment
+* recipient : String with the phone number of a single recipient
+
+* timestamp : Long, can be used to identify the corresponding Signal reply