How to access function defined in a class?

[AvadootNachankar]

/////////////////////////////////////////////////////////////////////////////////////////////////
@connection.register

class Author(DjangoDocument):
collection_name = 'Authors'
structure = {
'name': unicode,
'created_at': datetime.datetime
}

required_fields = ['name']
default_values = {'created_at':datetime.datetime.utcnow}

use_dot_notation = True

def my_func(self):
    print(" my_func working...\n")

/////////////////////////////////////////////////////////////////////////////////////////////////

in shell, i.e. "python manage.py shell"

from .models import *
from django_mongokit import get_database
from bson import ObjectId

db = get_database()

c_author = db[Author.collection_name]

o_author = c_author.Author()

o_author
{'created_at': datetime.datetime(2013, 9, 16, 9, 51, 43, 200898), 'name': None}

o_author.my_func()
Traceback (most recent call last):
File "", line 1, in
File "/home/tissavadoot/Desktop/Tissproject/TP_MK/local/lib/python2.7/site-packages/mongokit/schema_document.py", line 379, in getattr
return dict.getattribute(self, key)
AttributeError: 'Author' object has no attribute 'my_func'

I'm stuck over here, need help!!

[AvadootNachankar]

This issue is also resolved by following way:-

we imported following package from django:
import django.db import models

Then inside the class:

@connection.register
class Author(DjangoDocument):

# Added the below line, and it does the trick for me...
objects = models.Manager()

collection_name = 'Authors'
structure = {
    'name': unicode,
    'created_at': datetime.datetime
}
.
.
.
.
def my_func(self, *args, **kwargs):
    return (" my_func working...\n")

Is it the correct way?? Please suggest.