pubsubclient/_posts/2000-01-02-PubSubClient1.md

tag, type, name, params

tag	type	name	params
api	constructor	PubSubClient	name description client the network client to use, for example <code>WiFiClient</code>

Creates a partially initialised client instance.

Before it can be used, the server details must be configured:

EthernetClient ethClient;
PubSubClient client(ethClient);

void setup() {
    client.setServer("broker.example.com",1883);
    // client is now ready for use
}