Unable to Install asttokens from Specified Source

Thanks for such a great work
 I'm currently facing an issue while trying to install the asttokens package from a specific source, indicated by a link such as file:///home/conda/feedstock_root/build_artifacts/asttokens_1694046349000/work. Despite this specification, I'm unable to successfully install asttokens. Could you please provide some suggestions on how to resolve this issue?