validate_secret_key_base

# File railties/lib/rails/application.rb, line 579
    def validate_secret_key_base(secret_key_base)
      if secret_key_base.is_a?(String) && secret_key_base.present?
        secret_key_base
      elsif secret_key_base
        raise ArgumentError, "`secret_key_base` for #{Rails.env} environment must be a type of String`"
      elsif secrets.secret_token.blank?
        raise ArgumentError, "Missing `secret_key_base` for '#{Rails.env}' environment, set this string with `rails credentials:edit`"
      end
    end