local binding = buf:match('^%S+%s+(%S+)')
    Live.manifest[binding] = nil
    live.eval(binding..' = nil')  -- ignore errors which will likely be from keywords like `function = nil`
    local next_filename = live.versioned_filename(Live.next_version, binding)

    local definition_name = buf:match('^%S+%s+(%S+)')
    Live.manifest[definition_name] = nil
    live.eval(definition_name..' = nil')  -- ignore errors which will likely be from keywords like `function = nil`
    local next_filename = live.versioned_filename(Live.next_version, definition_name)

    table.insert(Live.history, binding)

    table.insert(Live.history, definition_name)

    local binding = buf:match('^%S+%s+(%S+)')
    local val, _ = live.get_binding(binding)

    local definition_name = buf:match('^%S+%s+(%S+)')
    local val, _ = live.get_binding(definition_name)

    for binding in buf:gmatch('%s+(%S+)') do
      print(binding)
      local val, _ = live.get_binding(binding)

    for definition_name in buf:gmatch('%s+(%S+)') do
      print(definition_name)
      local val, _ = live.get_binding(definition_name)

    local binding = cmd
    if Live.frozen_definitions[binding] then
      live.send_to_driver('ERROR definition '..binding..' is part of Freewheeling infrastructure and cannot be safely edited live.')

    local definition_name = cmd
    if Live.frozen_definitions[definition_name] then
      live.send_to_driver('ERROR definition '..definition_name..' is part of Freewheeling infrastructure and cannot be safely edited live.')

    local next_filename = live.versioned_filename(Live.next_version, binding)

    local next_filename = live.versioned_filename(Live.next_version, definition_name)

    table.insert(Live.history, binding)
    Live.manifest[binding] = Live.next_version

    table.insert(Live.history, definition_name)
    Live.manifest[definition_name] = Live.next_version