Here is a list of all documented concepts with brief descriptions:
[detail level 123]
| Nnfx | |
| Njson | |
| RPrimitive | Concept for JSON-compatible primitive types |
| RValue | Concept for all JSON-compatible value types |
| RContainer | Concept for JSON container types only |
| RCheckable | Concept for types that can be checked with is<T>() |