Function create_pie_chart 

pub fn create_pie_chart<'a, T>(
    grouped_time_log: BTreeMap<impl Into<Option<&'a T>>, Vec<&'a TimeLog>>,
    title: &str,
    render: &mut RenderOptions<'_>,
) -> Result<(), ChartSettingError>
where
    T: Display + 'a,

Create a pie chart.

Parameters

• grouped_time_log: A map of keys (e.g., User or Milestone) to a list of time logs
• title: The title of the chart
• render: Options for the rendering of the chart.

Errors

• Returns ChartSettingError::CharmingError if the creation of the chart failed.
• Returns ChartSettingError::FileNotFound if the theme file in RenderOptions does not exist.
• Returns ChartSettingError::IoError if there was an error reading or writing from/to the filesystem.