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: generic_request.rb
    path of file: ./repos/ruby-packer/ruby/lib/net/http
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
# HTTPGenericRequest is the parent of the Net::HTTPRequest class.
# Do not use this directly; use a subclass of Net::HTTPRequest.
#
# Mixes in the Net::HTTPHeader module to provide easier access to HTTP headers.
#
class Net::HTTPGenericRequest

  include Net::HTTPHeader

  def initialize(m, reqbody, resbody, uri_or_path, initheader = nil)
    @method = m
    @request_has_body = reqbody
    @response_has_body = resbody

    if URI === uri_or_path then
      raise ArgumentError, "not an HTTP URI" unless URI::HTTP === uri_or_path
      raise ArgumentError, "no host component for URI" unless uri_or_path.hostname
      @uri = uri_or_path.dup
      host = @uri.hostname.dup
      host << ":".freeze << @uri.port.to_s if @uri.port != @uri.default_port
      @path = uri_or_path.request_uri
      raise ArgumentError, "no HTTP request path given" unless @path
    else
      @uri = n
    
  def encode_multipart_form_data(out, params, opt)
    charset = opt[:charset]
    boundary = opt[:boundary]
    require 'securerandom' unless defined?(SecureRandom)
    boundary ||= SecureRandom.urlsafe_base64(40)
    chunked_p = chunked?

    buf = ''
    params.each do |key, value, h={}|
      key = quote_string(key, charset)
      filename =
        h.key?(:filename) ? h[:filename] :
        value.respond_to?(:to_path) ? File.basename(value.to_path) :
        nil

      buf << "--#{boundary}\r\n"
      if filename
        filename = quote_string(filename, charset)
        type = h[:content_type] || 'application/octet-stream'
        buf << "Content-Disposition: form-data; " \
          "name=\"#{key}\"; filename=\"#{filename}\"\r\n" \
          "Content-Type: #{type}\r\n\r\n"
        if !out.respond_to?(:write) || !value.respond_to?(:read)
          # if +out+ is not an IO or +value+ is not an IO
          buf << (value.respond_to?(:read) ? value.read : value)
        elsif value.respond_to?(:size) && chunked_p
          # if +out+ is an IO and +value+ is a File, use IO.copy_stream
          flush_buffer(out, buf, chunked_p)
          out << "%x\r\n" % value.size if chunked_p
          IO.copy_stream(value, out)
          out << "\r\n" if chunked_p
        else
          # +out+ is an IO, and +value+ is not a File but an IO
          flush_buffer(out, buf, chunked_p)
          1 while flush_buffer(out, value.read(4096), chunked_p)
        end
      else
        # non-file field:
        #   HTML5 says, "The parts of the generated multipart/form-data
        #   resource that correspond to non-file fields must not have a
        #   Content-Type header specified."
        buf << "Content-Disposition: form-data; name=\"#{key}\"\r\n\r\n"
        buf << (value.respond_to?(:read) ? value.read : value)
      end