progress function adds a progress/work done indicator to your app.
Parameters
label(str): The label displayed in the progress component, indicating its purpose.value(float): (Optional) The current progress value (0.0 to 100.0). Values are automatically clamped to this range and rounded to the nearest integer for display.size(float): (Optional) The width of the component in a row. Defaults to1.0(full row). See the Layout Guide for details.

Returns
float: the currentvalue