import { C } from "https://deno.land/x/lucid@0.10.5/mod.ts";
const { BigNum } = C;
returns 0 if it would otherwise underflow
x/lucid/mod.ts>C.BigNum#clamped_sub
import { C } from "https://deno.land/x/lucid@0.10.5/mod.ts";
const { BigNum } = C;
returns 0 if it would otherwise underflow