class RSpec::Matchers::BuiltIn::Include

def excluded_from_actual
  return [] unless @actual.respond_to?(:include?)
  expecteds.inject([]) do |memo, expected_item|
    if comparing_hash_to_a_subset?(expected_item)
      expected_item.each do |(key, value)|
        memo << { key => value } unless yield actual_hash_includes?(key, value)
      end
    elsif comparing_hash_keys?(expected_item)
      memo << expected_item unless yield actual_hash_has_key?(expected_item)
    else
      memo << expected_item unless yield actual_collection_includes?(expected_item)
    end
    memo
  end
end