tryGet abstract method

Maybe? tryGet(
  1. dynamic from,
  2. dynamic to,
  3. dynamic key, {
  4. List anyTags,
  5. List allTags,
})

Get the value on the specified edge

(Optional) Only if it matches any of anyTags and matches all items in allTags

Implementation

Maybe tryGet(from, to, key, {List anyTags, List allTags});