render_template_to_encrypted_file

# File railties/lib/rails/generators/rails/credentials/credentials_generator.rb, line 46
        def render_template_to_encrypted_file
          empty_directory File.dirname(content_path)

          content = nil

          encrypted_file.change do |tmp_path|
            template("credentials.yml", tmp_path, force: true, verbose: false) do |rendered|
              content = rendered
            end
          end

          content
        end