Function subscribe 

pub fn subscribe(
    client: &SonosClient,
    ip: &str,
    callback_url: &str,
) -> Result<ManagedSubscription>

Subscribe to RenderingControl events

This is a convenience function that subscribes to RenderingControl service events. Events include volume changes, mute state changes, etc.

Arguments

• client - The SonosClient to use for the subscription
• ip - The IP address of the Sonos device
• callback_url - URL where the device will send event notifications

Returns

A managed subscription for RenderingControl events

Example

use sonos_api::{SonosClient, services::rendering_control};

let client = SonosClient::new();
let subscription = rendering_control::subscribe(
    &client,
    "192.168.1.100",
    "http://192.168.1.50:8080/callback"
)?;

// Now RenderingControl events will be sent to your callback URL
// Execute control operations separately:
let vol_op = rendering_control::set_volume("Master".to_string(), 50).build()?;
client.execute("192.168.1.100", vol_op)?;