barChart/bar/list - Returns a list of all bars of a bar chart.id - The ID of the bar chart to list the bars of.[{id: <number> - The ID of one of the bars.label: <string> - The label of the bar.insert_time: <number> - The Unix timestamp of when the bar was added.update_time: <number> - The Unix timestamp of when the bar was last modified.}]BAR_CHART_NOT_FOUND - A bar chart with the ID doesn't exist.