from importlib import import_module
from types import ModuleType


def get_pipeline_class(pipeline_name: str) -> ModuleType:
    try:
        module = import_module(f"pipelines.{pipeline_name}")
    except ModuleNotFoundError:
        raise ValueError(f"Pipeline {pipeline_name} module not found")

    pipeline_class = getattr(module, "Pipeline", None)

    if pipeline_class is None:
        raise ValueError(f"'Pipeline' class not found in module '{module_name}'.")

    return pipeline_class