Function toAtomicUnits

toAtomicUnits(amount: number, symbol: TokenSymbol): string
Convert human-readable amount to atomic units (smallest unit)
Parameters
- amount: number
  Amount in human-readable units (e.g., 1.5 for 1.5 USDC)
- symbol: TokenSymbol
  Token symbol
Returns string
Amount in atomic units as string
Example
```
const atomic = toAtomicUnits(1.5, 'USDC');
console.log(atomic); // '1500000' (1.5 * 10^6)

const ethAtomic = toAtomicUnits(0.001, 'ETH');
console.log(ethAtomic); // '1000000000000000' (0.001 * 10^18)
```
- Defined in tokens/index.ts:170