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: validator.rb
    path of file: ./repos/manageiq/lib/vmdb/settings
    
    the code of the file until where you have to start completion: module Vmdb
  class Settings
    class Validator
    
    
      def log(data)
        valid, errors = true, []

        # validate level
        data.each_pair do |key, value|
          next unless key.to_s.start_with?("level")

          level = value.to_s.upcase.to_sym
          unless Logger::Severity.constants.include?(level)
            valid = false
            errors << [key, "#{key}, \"#{level}\", is invalid. Should be one of: #{Logger::Severity.constants.join(", ")}"]
          end
        end