module Geocoder::Lookup

def spawn(name)
  if all_services.include?(name)
    name = name.to_s
    require "geocoder/lookups/#{name}"
    Geocoder::Lookup.const_get(classify_name(name)).new
  else
    valids = all_services.map(&:inspect).join(", ")
    raise ConfigurationError, "Please specify a valid lookup for Geocoder " +
      "(#{name.inspect} is not one of: #{valids})."
  end
end