function (base, derived) {
let solved = {}
for (let i = 0, len = base.length; i < len; i++) {
const {key, value} = base[i]
solved[key] = value
}
for (let i = 0, len = derived.length; i < len; i++) {
const {key, value} = derived[i]
solved[key] = Parser.evaluate(value, solved)
}
return solved
}