ligo/gitlab-pages/docs/language-basics-operators.md

id	title
language-basics-operators	Operators

Available operators

Michelson	Pascaligo	Description
SENDER	sender	Address that initiated the current transaction
SOURCE	source	Address that initiated the transaction, which triggered the current transaction. (useful e.g. when there's a transaction sent by another contract)
AMOUNT	amount	Amount of tez sent by the transaction that invoked the contract