Sec. 2. As used in this chapter, "funds" includes the following:
(1) Coin or paper money of the United States or any other country that is designated as legal tender and that circulates and is customarily used and accepted as a medium of exchange in the country of issue.
(2) United States silver certificates, United States Treasury notes, and Federal Reserve System notes.
(3) Official foreign bank notes that are customarily used and accepted as a medium of exchange in a foreign country.
(4) Foreign bank drafts.