$mol_mutable

Mutable way for immutable patch.

``ts
const prev = {
foo: [ 1, 2, 3 ],
bar: { lol: 'xxx' },
}

const mut = $mol_mutable( prev )
mut.foo1
mut.foo1
console.log( mut.foo() ) // [ 1, 0 , 3 ]

const next = mut()
// prev !== next
// prev.foo == [ 1, 2, 3 ]
// next.foo == [ 1, 0, 3 ]
// prev.bar === next.bar
``