  to the library's documentation.
As a result, the width and height arguments have been deprecated
  from most chart commands, and use_container_width has been introduced
  everywhere to allow you to make charts fill as much horizontal space as
  possible (this used to be the default).
Version 0.52.0
Release date: December 20, 2019
Highlights:
📤 Preview release of the file uploader widget. To try it out just call
  st.file_uploader!
Note that as a preview release things may change in the near future.
  Looking forward to hearing input from the community before we stabilize the
  API!
👋 Support for emoji codes in
  st.write and st.markdown! Try it out with st.write("Hello :wave:").
Breaking changes:
🧹 st.pyplot now clears figures by default, since that's what you want 99% of
  the time. This allows you to create two or more Matplotlib charts without
