You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: scheme_set.rb
    path of file: ./repos/htty/lib/htty/cli/commands
    
    the code of the file until where you have to start completion: require 'htty'

# Encapsu
    
  def self.help_extended
    'Changes the scheme, or protocol identifier, used for the request. Does ' +
    "not communicate with the host.\n"                                        +
    "\n"                                                                      +
    "The scheme you supply must be either 'http' or 'https'. Changing the "   +
    "scheme has no effect on the port, and vice versa.\n"                     +
    "\n"                                                                      +
    'The console prompt shows the address for the current request.'
  end