pub trait Source: Send {
    // Required method
    fn run<'life0, 'life1, 'async_trait>(
        &'life0 mut self,
        ctx: &'life1 mut dyn Context,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
}Expand description
A data source that pushes records into the pipeline.