Update app.py

app.py

@@ -18,6 +18,25 @@ Built with 🤗 Hugging Face's [transformers](https://huggingface.co/transformer
 """
 
 
+# Session state
+if 'key' not in st.session_state:
+    st.session_state['key'] = 'value'
+if 'key' not in st.session_state:
+    st.session_state.key = 'value'
+st.write(st.session_state.key)
+st.session_state.key = 'value2'     # Attribute API
+st.session_state['key'] = 'value2'  # Dictionary like API
+st.write(st.session_state)
+st.session_state
+for key in st.session_state.keys():
+    del st.session_state[key]
+st.text_input("Your name", key="name")
+st.session_state.name
+
+#def form_callback():
+#    st.write(st.session_state.my_slider)
+#    st.write(st.session_state.my_checkbox)
+
 @st.cache(
     show_spinner=False,
     hash_funcs={