An internal type that a resolver uses to convert data values.
Don't use a `StringSearchCriteriaFromStringResolverSpecificification` type directly in your code.
The system uses this type internally to manage the resolution process.
Converts the specified value into the expected data type.
- Parameters:
- input: The value to convert.
- context: Contextual resolution information, including resolution source and information
about the associated parameter if applicable.
- Returns: The converted value, or `nil` if conversion fails.