BigNumber library extension replacing methods like add with symbols like + using tagged template strings
_`(1 + 2 + 3 + 4 + 5)`
_`(1 + ${num} * 2)`
_`(100 - ${num1} / ${num2})`
instead of
new BigNumber(1).add(2).add(3).add(4).add(5)
new BigNumber(1).add(new BigNumber(num).mul(2))
new BigNumber(100).sub(new BigNumber(num1).div(num2))