Function isSome

isSome<T>(val): val is SomeOption<T>
Type guard to check if an Option is a Some value. This function is used to narrow down the type of an Option to SomeOption in TypeScript's type system.
Type Parameters
- T extends NonUndefined
Parameters
- val: Option<T>
  The Option to be checked.
Returns val is SomeOption<T>
true if the provided Option is a SomeOption, false otherwise.

Example
```
const option = Some('Success');
if (isSome(option)) {
  console.log('Option has a value:', option.unwrap());
}
```
Deprecated
Use Option.isSome instead.
- Defined in option/option.ts:374