Following the merge of https://github.com/bitcoin/bitcoin/pull/23083, we'll throw a non-fatal error at runtime if the documentation for an RPC is incorrect. This behaviour has found numerous issues over a very short period (of the PR being opened). However, this is not something that we want in production / release builds, instead, we want the ability to have it enabled in the CI and when running tests. A runtime option could be added, which controls this behaviour (disabled by default).

#### Useful skills:

- C++
- Understanding of Bitcoin Core's initialization sequence
- Understanding of Bitcoin Core's RPC interface

#### Want to work on this issue?

For guidance on contributing, please read [CONTRIBUTING.md](https://github.com/bitcoin/bitcoin/blob/master/CONTRIBUTING.md) before opening your pull request.

{
    
    const std::string indent(current_indent, ' ');
    const std::string indent_next(current_indent + 2, ' ');
    
    const std::string maybe_separator{outer_type != OuterType::NONE ? "," : ""};
    
    const std::string maybe_key{
        outer_type == OuterType::OBJ ?
            "\"" + this->m_key_name + "\" : " :
            ""};
    
    const auto Description = [&](const std::string& type) {
        return "(" + type + (this->m_optional ? ", optional" : "") + ")" +
               (this->m_description.empty() ? "" : " " + this->m_description);
    };
    switch (m_type) {
    case Type::ELISION: {
        
        sections.PushSection({indent + "..." + maybe_separator, m_description});
        return;
    }
    case Type::ANY: {
        NONFATAL_UNREACHABLE(); 
    }
    case Type::NONE: {
        sections.PushSection({indent + "null" + maybe_separator, Description("json null")});
        return;
    }