Function formatTin

formatTin(tin: string, options?: FormatTinOptions): string
Formats a TIN with hyphens.
Parameters
- tin: string
  The TIN to format.
- options: FormatTinOptions = ...
  The options for formatting the TIN. {boolean} isBusinessTin: defaults to false for SSN format, but can be set to true for EIN format.
Returns string
The formatted TIN.
Example
```
SSN format:
formatTin("123456789"); // "123-45-6789"
formatTin("123456789", { isBusinessTin: false }); // "123-45-6789"

EIN format:
formatTin("123456789", { isBusinessTin: true }); // "12-3456789"
formatTin("987654321", { isBusinessTin: true }); // "98-7654321"
```
- Defined in utils/tinFormatter.ts:19