Function getBankByCode

getBankByCode(code: unknown): BankInfo | null
Looks up bank details by CBSL 4-digit bank code.
Parameters
- code: unknown
  Four-digit CBSL bank code, as text or a number.
Returns BankInfo | null
A copy of the bank's details, or null if unknown.
Example
```
getBankByCode('7010')?.name; // 'Bank of Ceylon'
getBankByCode(7278)?.shortName; // 'NDB'
```
- Defined in bank/validator.ts:61