update method
A helper method to copy the definition methods
Implementation
ZipperLocation<ZR, ZI, ZS> update(
{required dynamic node, required Path<ZR> path}) {
assert(node is ZI || node is ZS);
return ZipperLocation(
sectionP: sectionP,
getChildren: getChildren,
makeSection: makeSection,
node: node,
path: path);
}