Margins Record

struct Margins {
    var top: Double
    var bottom: Double
    var left: Double
    var right: Double
}

public record Margins(
    double top,
    double bottom,
    double left,
    double right
)

pub struct Margins {
    pub top: f64,
    pub bottom: f64,
    pub left: f64,
    pub right: f64,
}