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: file_depot_swift.rb
    path of file: ./repos/manageiq/app/models
    
    the code of the file until where you have to start completion: class FileDepotSwift < FileDepot
  def self.uri_prefix
    "sw
    
  def verify_credentials(auth_type = 'default', options = {})
    host = URI(options[:uri]).host
    options[:auth_type] = auth_type
    connect(options.merge(:auth_type => auth_type))
  rescue Excon::Errors::Unauthorized => err
    msg = "Access to Swift host #{host} failed due to a bad username or password."
    logger.error("#{msg} #{err}")
    raise msg
  rescue => err
    msg = "Error connecting to Swift host #{host}. #{err}"
    logger.error(msg)
    raise err, msg, err.backtrace
  end