"""Documents module.

**Document** module is a collection of classes that handle documents
and their transformations.

"""

from typing import TYPE_CHECKING

from langchain_core._import_utils import import_attr

if TYPE_CHECKING:
    from .base import Document
    from .compressor import BaseDocumentCompressor
    from .transformers import BaseDocumentTransformer

__all__ = ("BaseDocumentCompressor", "BaseDocumentTransformer", "Document")

_dynamic_imports = {
    "Document": "base",
    "BaseDocumentCompressor": "compressor",
    "BaseDocumentTransformer": "transformers",
}


def __getattr__(attr_name: str) -> object:
    module_name = _dynamic_imports.get(attr_name)
    result = import_attr(attr_name, module_name, __spec__.parent)
    globals()[attr_name] = result
    return result


def __dir__() -> list[str]:
    return list(__all__)