Get's the OHLC set for an identifier by the provided span. If it doesn't exist, it will be created.
by default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default which helps finding memory leaks. Obviously not all Emitters should be limited to 10. This function allows that limit to be increased. Set to zero for unlimited.
Static
guardStatic
listenerStatic
set
Used in generators to provide optional access to other spans, exchanges or quote types