New returns a new schema database.

ErrNilMutator reports that a method which expected an actual Mutator was a nil pointer.

Set represents a list populated by unique values.

String represents a string element.

Unknown represents a path element we do not know the type of.

DB is a database that caches all the implied schemas.

ErrConflictingSchema reports that adding a Mutator to the DB resulted in conflicting implicit schemas.

MutatorWithSchema is a mutator exposing the implied schema of the target object.