src/main/java/org/jinstagram/realtime/InstagramSubscription.java
public InstagramSubscription longitude(String longitude){
		Preconditions.checkValidLatLong(longitude, "Invalid 'lng' key");
		
		this.params.put(Constants.LONGITUDE, longitude);
		
		return this;
	}
public InstagramSubscription longitude(String longitude){
		Preconditions.checkValidLatLong(longitude, "Invalid 'lng' key");
		
		this.params.put(Constants.LONGITUDE, longitude);
		
		return this;
	}
Configure the longitude for geography subscription
@param longitude The longitude for geography subscription
@return the {@link InstagramSubscription} instance for method chaining