#### Description `formula` prop available in Python, though JS formulae are unusable from Python. #### Steps/Code to Reproduce In the python REPL run: ```import dash_vtk help (dash_vtk.Calculator) ```` We see there is a prop `formula` available, but JS formulae are unusable from Python #### Expected Results Only have props that can be used in Python #### Actual Results `formula` is available. #### Versions Dash 2.0.0 <ipython-input-3-ecfce0f39717>:3: UserWarning: The dash_html_components package is deprecated. Please replace `import dash_html_components as html` with `from dash import html` import dash_html_components; print("Dash Core Components", dash_html_components.__version__) Dash Core Components 2.0.0 <ipython-input-3-ecfce0f39717>:4: UserWarning: The dash_core_components package is deprecated. Please replace `import dash_core_components as dcc` with `from dash import dcc` import dash_core_components; print("Dash HTML Components", dash_core_components.__version__) Dash HTML Components 2.0.0 Dash VTK 0.0.9 @alexcjohnson