col_def                 Define a table column
df_to_tree              Convert a flat data frame into a nested node
                        tree
fmt_currency            Currency format function factory
fmt_percent             Percentage format function factory
nestable                Create a nestable collapsible HTML table
nestableOutput          Shiny UI output for a nestable table
nestable_theme          Create a nestable theme
node                    Define a tree node
rows_to_nodes           Convert data frame rows into leaf nodes
weighted_rollup         Weighted-average rollup function factory
