# json2ciw > A python package to convert JSON file to working Ciw DES models ## Docs ### API Reference #### Classes > Core classes - [CiwConverter](reference/CiwConverter.html) #### Functions > Public functions - [multiple_replications](reference/multiple_replications.html): Run multiple replications of a Ciw simulation and collect performance metrics - [summarise_results](reference/summarise_results.html): Aggregate replication results and transpose so metrics are rows - [tidy_to_wide_format](reference/tidy_to_wide_format.html): Return replication results in wide format: - [create_user_filtered_hist](reference/create_user_filtered_hist.html): Create a Plotly histogram with a dropdown that lets the user - [render_simulation_app](reference/render_simulation_app.html): Main function to render the simulation UI and execute the model