I confirmed that Nelson is correct about autodoc_typehints = 'description' causing the issue, but you can set another option to get rid of the parameters. You don't just have to set autodoc_typehints to 'none' or 'signature'. You can set autodoc_typehints_description_target to 'documented' or 'documented_params' and the parameters section will go away. Here is a link to the option in the Sphinx documentation.