Add configuration options for import

**Problem**
When working with types, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

No files or tests are named. Start by locating the import configuration entry point and the type-related error handling, then determine the expected configuration options and error details; done means the requested import settings work and type errors provide more descriptive messages.

Written by the indexing model from the issue text.