@Override
    public boolean equals(Object o) {
        if (o == this) return true;
        if (!(o instanceof ServiceCallback)) return false;
        final ServiceCallback other = (ServiceCallback) o;
        return this.serviceClass.equals(other.serviceClass);
    }
Gets the service provider.

@return the service provider
helper/src/main/java/me/lucko/helper/utils/ServiceCallback.java