feat(mdx-loader): Remark plugin to report unused MDX / Markdown directives · facebook/docusaurus@55a0abe

An index signature parameter type cannot be a literal type or generic type. Consider using a mapped object type instead.

Element implicitly has an 'any' type because expression of type '"containerDirective" | "leafDirective" | "textDirective"' can't be used to index type '{}'.

Process completed with exit code 2.