Function isStringSecondsValue

isStringSecondsValue(value: unknown): value is string
Check if given is a string representing a CronSecondsValue.

Example
```
isStringSecondsValue("30"); // true
isStringSecondsValue("80"); // false
```
Returns
Returns true if is a string representing a CronSecondsValue, false otherwise.
Parameters
- value: unknown
  
  Value to check.
Returns value is string
- Defined in src/validations/isStringSecondsValue.ts:15