Update FilecoinNumber comments

packages/filecoin-number/src/FilecoinNumber.ts

@@ -11,6 +11,13 @@ export enum CoinType {
   TEST = 't'
 }
 
+/**
+ * @param options.truncate Whether to truncate the address with K, M, B and T units, defaults to `true`. Disabled when `options.decimals` is `null`
+ * @param options.decimals How many decimals to display, `null` disables rounding, defaults to `3`
+ * @param options.padZeros Whether add trailing zeros to the end of the string, defaults to `false`
+ * @param options.addUnit Whether to display the unit, defaults to `true`
+ * @param options.prefix The prefix to prepend to the formatted string
+ */
 export interface FilecoinFormatOptions {
   truncate?: boolean
   decimals?: number | null
@@ -156,10 +163,6 @@ export class FilecoinNumber extends BigNumber {
 
   /**
    * Expresses this FilecoinNumber as a balance string
-   * @param options.truncate Whether to truncate the address with K, M, B and T units, defaults to `true`. Disabled when `options.decimals` is `null`
-   * @param options.decimals How many decimals to display, `null` disables rounding, defaults to `3`
-   * @param options.padZeros Whether add trailing zeros to the end of the string, defaults to `false`
-   * @param options.addUnit Whether to display the unit, defaults to `true`
    */
   formatBalance(options?: FilecoinFormatOptions): string {
     const truncate = options?.truncate ?? true