Function isValidPassport

isValidPassport(passport: unknown): boolean
Validates whether the input is a valid Sri Lankan passport number.
Parameters
- passport: unknown
  Passport number to check.
Returns boolean
true if the number matches a Sri Lankan passport format. Issuance is not verified.
Example
```
isValidPassport('N1234567'); // true
isValidPassport('1234567'); // false
```
- Defined in passport/validator.ts:18