public class WhatsAppMessage {
    
    public entry[] entry;
    public class entry {
        public String id;	
        public changes[] changes;
    }
    public class changes {
        public value value;
        public String field;	
    }
    public class value {
        public String messaging_product;	
        public metadata metadata;
        public contacts[] contacts;
        public messages[] messages;
    }
    public class metadata {
        public String display_phone_number;	
        public String phone_number_id;	
    }
    public class contacts {
        public profile profile;
        public String wa_id;	
    }
    public class profile {
        public String name;	
    }
    public class messages {
        public context context;
        public String fromx;	
        public String id;	
        public String timestamp;	
        public text text;
        public String typex;	
        public reaction reaction;
        public image image;
        public image video;
    }
    public class context {
        public String fromx;	
        public String id;	
    }
    public class text {
        public String body;	
    }
    public class reaction{
        public String emoji;
        public String message_id;
    }
    public class image{
        public String mime_type;
        public String id;
        public String sha256;
        public String caption;
    }

    /* Class for the Document Message */
    public class document{
        public String mime_type;
        public String filename;
        public String sha256;
        public String id;
    }

    /* Check if the user has clicked on any button */
    public class button {
        public String payload;
        public String text;
    }
}