text: from diagrams import Diagram, Cluster
  from diagrams.custom import Custom
  from urllib.request import urlretrieve
  from diagrams.programming.framework import Django
  from diagrams.programming.flowchart import Database
  from diagrams.programming.framework import Vue
  from diagrams.programming.framework import FastAPI
  from diagrams.programming.framework import Flutter
  from diagrams.onprem.database import PostgreSQL
  from diagrams.generic.os import Android
  from diagrams.generic.os import IOS
  
  
  with Diagram("ARQUITECTURA APLICACION", show=False, filename="ARQUITECTURA_APLICACION", direction="LR"):
  
      with Cluster("ARQUITECTURA APLICACION"):
  
          # download the icon image file
          navegador_url = "https://cdn.icon-icons.com/icons2/1365/PNG/512/browser_89380.png"
          navegador_icon = "chrome.png"
          urlretrieve(navegador_url, navegador_icon)
          
  
          # download the icon image file
          api_url = "https://img.icons8.com/wired/64/000000/api-settings.png"
          api_icon = "api.png"
          urlretrieve(api_url, api_icon)
  
          # API = Custom("API", api_icon)
          # Database_server = Database("Database")
  
  
          fast = FastAPI("FastAPI")
          navegador = Custom("HTTP Request", navegador_icon)
          PostgreSQL_server = PostgreSQL("PostgreSQL")
          Android_device = Android("Android")
          IOS_device = IOS("IOS")
          Vue_app = Vue("Vue")
          Flutter_server = Flutter("Flutter")
          
          #fast >> PostgreSQL_server  
          #fast >> PostgreSQL_server
  
          
          fast >> Flutter_server 
          fast >> Vue_app
          navegador >> fast
  
          
  
          Flutter_server >> Android_device
          Flutter_server >> IOS_device
  
          PostgreSQL_server >> fast  
          PostgreSQL_server >> fast
          
      
  
      # ARQUITECTURA APLICACION 
      # @victorgalvez
      # victorgalvez.online
      # vhgalvez@gmial.com
      # license: MIT  
      # version: 1.0.0
      # date: 2020-05-01
      # language: python3
      # description: ARQUITECTURA APLICACION
  
  