presto-main/src/main/java/io/prestosql/operator/annotations/TypeImplementationDependency.java/TypeImplementationDependency/equals
class TypeImplementationDependency:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }

        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        TypeImplementationDependency that = (TypeImplementationDependency) o;
        return Objects.equals(signature, that.signature);
    }