# File lib/rspec/core/metadata_hash_builder.rb, line 7
        def build_metadata_hash_from(args)
          metadata = args.last.is_a?(Hash) ? args.pop : {}

          if RSpec.configuration.treat_symbols_as_metadata_keys_with_true_values?
            add_symbols_to_hash(metadata, args)
          else
            warn_about_symbol_usage(args)
          end

          metadata
        end