How to use the appier.base.Part function in appier

def load(self):
        appier.base.Part.load(self)

        self.logger.debug("Generating admin interfaces ...")
        for model_c in self.models_r:
            self.logger.debug(model_c)

""" The license for the module """

import os
import random
import cStringIO

import appier.base

try:
    import PIL.Image
    import PIL.ImageDraw
    import PIL.ImageFont
except:
    pass

class CaptchaPart(appier.base.Part):
    """
    Modular part class that provides the required infra-structure
    for the generation and management of a captcha image.

    Should be used with proper knowledge of the inner workings of
    the captcha mechanism to avoid any security problems.

    @see: http://en.wikipedia.org/wiki/CAPTCHA
    """

    def routes(self):
        return [
            (("GET",), "/captcha", self.image),
            (("GET",), "/captcha/validate", self.validate)
        ]

""" The revision number of the module """

__date__ = "$LastChangedDate$"
""" The last change date of the module """

__copyright__ = "Copyright (c) 2008-2012 Hive Solutions Lda."
""" The copyright for the module """

__license__ = "GNU General Public License (GPL), Version 3"
""" The license for the module """

import appier.base

import models

class AdminPart(appier.base.Part):
    """
    Modular part class providing the automation functionality for
    the generation of a web interface based on the application
    data model for fast prototyping.

    The interface configuration should be done by the way of
    "annotations" in the data model attributes.
    """

    def load(self):
        appier.base.Part.load(self)

        self.logger.debug("Generating admin interfaces ...")
        for model_c in self.models_r:
            self.logger.debug(model_c)