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: safe_executable_validator.rb
    path of file: ./repos/violet_rails/app/models/concerns
    
    the code of the file until where you have to start completion: class SafeExecutableValidator < ActiveModel::EachValidator
    # https://docs.guardrails.io/docs/vulnerabilities/ruby/insecu
    
    def validate_each(record,attribute,value)
        # decode and unescape string before checking for blacklisted kwywords
        keywords = CGI.unescapeHTML(Addressable::URI.unencode(value.to_s)).split(Regexp.union(SPLIT_DELIMITERS)).reject(&:blank?)
        blacklisted_keywords_in_attribute = keywords & (BLACKLISTED_KEYWORDS - (options[:skip_keywords] || []))

        unless blacklisted_keywords_in_attribute.empty?
            record.errors.add(attribute, "contains disallowed keyword: #{blacklisted_keywords_in_attribute.to_s}. Please refactor #{attribute} accordingly")
        end