Determine if T can be converted to dom::Value.
Declared in <mrdocs/Dom/Value.hpp>
template<
class T,
class Context>
concept HasValueFrom = HasValueFromWithContext<T, Context> ||
HasValueFromWithoutContext<T> ||
std::constructible_from<Value, T>;
If T can be converted to dom::Value via a call to dom::ValueFrom, the static data member value is defined as true. Otherwise, value is defined as false.