typed-document-node: camelCase exports by default?

First of all, thank you for this amazing plugin!

By default it generates TypedDocumentNodes in PascalCase. While it makes sense for all generated TypeScript types, it probably should be camelCase for nodes as they are values rather than types. For example, typescript-react-apollo generates functions that start with lowercase letters.

There's a config option namingConvention, but setting it to change-case-all#camelCase changes the case of types as well, which is not what we're looking for.

It also looks like omitOperationSuffix property doesn't work. Ideally, I would like to see the following being generated:

export const getUserQuery = ...;
export const deleteUserMutation = ...;

Is there a config property I'm missing?