You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: membership.rb
    path of file: ./repos/helix/examples/membership/lib
    
    the code of the file until where you have to start completion: require 'helix_runtime'
require 'membership/native'

class Array
  def naive_superset_of?(needle)
    self & needle == needle
  end

  def fast_superset_of?(needle)
    return true if needle.empty?
    return false if self.empty?

    needle_length = needle.length

    return false if needle_length > self.length

    needle_position = 0
    needle_item = needle[needle_posit
    
  def fast_superset_of?(needle)
    return true if needle.empty?
    return false if self.empty?

    needle_length = needle.length

    return false if needle_length > self.length

    needle_position = 0
    needle_item = needle[needle_position]

    self.each do |item|
      if item == needle_item
        needle_position += 1

        if needle_position >= needle_length
          return true
        else
          needle_item = needle[needle_position]
        end
      end