Rom Mapper - Hash with keys with object to plain hash

rom_mapper_hash_to_new_hash.rb

class Parents
  include Anima.new(:mother_name, :father_name)
end

person_hash = { name: "eduardo", :parents=>#<Parents mother_name="Mary" father_name="Joe">  }

class PersonHashToNewHash < ::ROM::Mapper
  relation    :person
  register_as :person_to_new_hash

  unwrap :parents do
    attribute :father, from: :father_name
    attribute :mother, from: :mother_name
  end
end

my_required_result = { name: "eduardo", father: "Joe", mother: "Mary" }