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: date_time_parser.rb
    path of file: ./repos/stackneveroverflow/vendor/bundle/ruby/2.3.0/gems/mail-2.6.5/lib/mail/parsers
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
module Mail::Parsers
  class DateTimeParser
    include Mail::Utilities

    def parse(s)
   
    
    def parse(s)
      raise Mail::Field::ParseError.new(Mail::DateTimeElement, s, "nil is an invalid DateTime") if s.nil?

      date_time = DateTimeStruct.new([])

      actions, error = Ragel.parse(:date_time, s)
      if error
        raise Mail::Field::ParseError.new(Mail::DateTimeElement, s, error)
      end