Margin constructor
Implementation
factory Margin([
_i2.num? t,
_i2.num? r,
_i2.num? b,
_i2.num? l,
]) =>
_i4.callConstructor(
_declaredMargin,
[
t ?? _i5.undefined,
r ?? _i5.undefined,
b ?? _i5.undefined,
l ?? _i5.undefined,
],
);