adding missing values

src/main/java/org/telegram/telegrambots/api/objects/Sticker.java

@@ -51,6 +51,26 @@ public class Sticker implements IBotApiObject {
         }
     }
     
+        public Integer getFileId() {
+        return fileId;
+    }
+
+    public String getWidth() {
+        return width;
+    }
+
+    public String getHeight() {
+        return height;
+    }
+
+    public String getThumb() {
+        return thumb;
+    }
+    
+    public String getFileSize() {
+        return fileSize;
+    }
+
     @Override
     public void serialize(JsonGenerator gen, SerializerProvider serializers) throws IOException {
         gen.writeStartObject();