import importlib

__all__ = (
    "reflect",
    "merge_dicts",
)


def reflect(value: str):
    if ":" in value:
        module_name, item_name = value.split(":")
    else:
        module_name, item_name = "builtins", value
    module = importlib.import_module(module_name)
    return getattr(module, item_name)


def merge_dicts(target, enhancer):
    for key, val in enhancer.items():
        if key not in target:
            target[key] = val
            continue

        if isinstance(val, dict):
            merge_dicts(target[key], val)
        else:
            target[key] = val
    return target