old_contents: from p1tr.plugin import *
  
  class Hello(Plugin):
      """
      A simple greeter. Easy demo plugin.
      """
  
      @command
      def hello(self, server, channel, nick, args):
          return 'Hello, ' + nick.split('!')[0] + '!'
  
new_contents: from p1tr.plugin import *
  
  class Hello(Plugin):
      """
      A simple greeter. Easy demo plugin.
      """
  
      @command
      def hello(self, server, channel, nick, args):
          """Greets the user invoking the command."""
          return 'Hello, ' + nick.split('!')[0] + '!'
  
subject: Add hello command help message