Method add_node

datafusion/common/src/display/graphviz.rs:69–92

(
        &self,
        f: &mut fmt::Formatter,
        id: usize,
        label: &str,
        tooltip: Option<&str>,
    )

    }

    pub fn add_node(
        &self,
        f: &mut fmt::Formatter,
        id: usize,
        label: &str,
        tooltip: Option<&str>,
    ) -> fmt::Result {
        if let Some(tooltip) = tooltip {
            writeln!(
                f,
                "    {}[shape=box label={}, tooltip={}]",
                id,
                GraphvizBuilder::quoted(label),
                GraphvizBuilder::quoted(tooltip),
            )
        } else {
            writeln!(
                f,
                "    {}[shape=box label={}]",
                id,
                GraphvizBuilder::quoted(label),
            )
        }
    }

    pub fn add_edge(
        &self,