State

import gradio as gr

def increment(count):
    return count + 1, count + 1

with gr.Blocks() as demo:
    state = gr.State(value=0)
    display = gr.Number(label="Count")
    btn = gr.Button("Increment")
    
    btn.click(fn=increment, inputs=state, outputs=[display, state])
    
demo.launch()

import gradio as gr

def chat(message, history):
    history = history + [(message, f"Echo: {message}")]
    return history, history

with gr.Blocks() as demo:
    chatbot = gr.Chatbot()
    msg = gr.Textbox()
    state = gr.State(value=[])
    
    msg.submit(chat, [msg, state], [chatbot, state])
    
demo.launch()

import gradio as gr

# State expires after 1 hour of inactivity
state = gr.State(value={}, time_to_live=3600)

import gradio as gr

def cleanup(value):
    print(f"Cleaning up state: {value}")
    # Perform cleanup operations

state = gr.State(value={}, delete_callback=cleanup)