diff --git a/README.md b/README.md
index f915369..c6a3cdd 100755
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # purplship
-PurplShip is a Multi-carrier Shipping API that simplifies the integration of logistic carrier services
+
+PurplShip is a Multi-carrier Shipping API that simplifies the integration of logistic carrier services.
+
+Visit [purplship.com](https://purplship.com) to deploy your private cloud multi-carrier shipping API instance.
 
 ## Requirements.
 
diff --git a/docs/Rate.md b/docs/Rate.md
index 252f244..2ea5ca2 100755
--- a/docs/Rate.md
+++ b/docs/Rate.md
@@ -12,7 +12,7 @@ Name | Type | Description | Notes
 **base_charge** | **float** |  The rate's monetary amount of the base charge. This is the net amount of the rate before additional charges  | [optional] 
 **total_charge** | **float** |  The rate's monetary amount of the total charge. This is the gross amount of the rate after adding the additional charges  | [optional] 
 **duties_and_taxes** | **float** | The monetary amount of the duties and taxes if applied | [optional] 
-**estimated_delivery** | **str** | The estimated delivery date | [optional] 
+**transit_days** | **int** | The estimated delivery transit days | [optional] 
 **extra_charges** | [**list[Charge]**](Charge.md) | list of the rate's additional charges | [optional] 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
diff --git a/docs/RateApi.md b/docs/RateApi.md
index f054821..b09f100 100755
--- a/docs/RateApi.md
+++ b/docs/RateApi.md
@@ -26,7 +26,7 @@ from pprint import pprint
 purplship.api_key = 'YOUR_API_KEY'
 purplship.host = 'https://instance.purplship.api/v1'
 
-data = purplship.models.RateRequest()
+data = purplship.RateRequest()
 
 try:
     api_response = purplship.Rate.fetch(data)
diff --git a/docs/ShipmentApi.md b/docs/ShipmentApi.md
index c3278af..5e3545e 100755
--- a/docs/ShipmentApi.md
+++ b/docs/ShipmentApi.md
@@ -26,7 +26,7 @@ from pprint import pprint
 purplship.api_key = 'YOUR_API_KEY'
 purplship.host = 'https://instance.purplship.api/v1'
 
-data = purplship.models.ShipmentRequest()
+data = purplship.ShipmentRequest()
 
 try:
     api_response = purplship.Shipment.create(data)
diff --git a/purplship/__init__.py b/purplship/__init__.py
index b2e6528..03cd568 100755
--- a/purplship/__init__.py
+++ b/purplship/__init__.py
@@ -22,7 +22,22 @@
 from purplship.configuration import Configuration
 
 # import models into sdk package
-import purplship.models as models
+from purplship.models.address import Address
+from purplship.models.card import Card
+from purplship.models.carrier_settings import CarrierSettings
+from purplship.models.charge import Charge
+from purplship.models.commodity import Commodity
+from purplship.models.customs import Customs
+from purplship.models.doc import Doc
+from purplship.models.invoice import Invoice
+from purplship.models.label_printing_request import LabelPrintingRequest
+from purplship.models.message import Message
+from purplship.models.options import Options
+from purplship.models.parcel import Parcel
+from purplship.models.payment import Payment
+from purplship.models.rate_request import RateRequest
+from purplship.models.references import References
+from purplship.models.shipment_request import ShipmentRequest
 
 
 api_key = None
diff --git a/purplship/models/rate.py b/purplship/models/rate.py
index 7b57ee3..41e24d4 100755
--- a/purplship/models/rate.py
+++ b/purplship/models/rate.py
@@ -2,9 +2,7 @@
 
 """
     PurplShip Multi-carrier API
-
     PurplShip is a Multi-carrier Shipping API that simplifies the integration of logistic carrier services  # noqa: E501
-
     OpenAPI spec version: v1
     Contact: hello@purplship.com
     Generated by: https://github.com/PurplShip/purplship-python-client.git
@@ -40,7 +38,7 @@ class Rate(object):
         'base_charge': 'float',
         'total_charge': 'float',
         'duties_and_taxes': 'float',
-        'estimated_delivery': 'str',
+        'transit_days': 'int',
         'extra_charges': 'list[Charge]'
     }
 
@@ -54,12 +52,12 @@ class Rate(object):
         'base_charge': 'baseCharge',
         'total_charge': 'totalCharge',
         'duties_and_taxes': 'dutiesAndTaxes',
-        'estimated_delivery': 'estimatedDelivery',
+        'transit_days': 'transitDays',
         'extra_charges': 'extraCharges'
     }
 
-    def __init__(self, id=None, carrier_name=None, carrier_id=None, currency=None, service=None, discount=None, base_charge=None, total_charge=None, duties_and_taxes=None, estimated_delivery=None, extra_charges=None):  # noqa: E501
-        """Rate - a model defined in PurplShip"""  # noqa: E501
+    def __init__(self, id=None, carrier_name=None, carrier_id=None, currency=None, service=None, discount=None, base_charge=None, total_charge=None, duties_and_taxes=None, transit_days=None, extra_charges=None):  # noqa: E501
+        """Rate - a model defined in Swagger"""  # noqa: E501
 
         self._id = None
         self._carrier_name = None
@@ -70,7 +68,7 @@ def __init__(self, id=None, carrier_name=None, carrier_id=None, currency=None, s
         self._base_charge = None
         self._total_charge = None
         self._duties_and_taxes = None
-        self._estimated_delivery = None
+        self._transit_days = None
         self._extra_charges = None
         self.discriminator = None
 
@@ -89,8 +87,8 @@ def __init__(self, id=None, carrier_name=None, carrier_id=None, currency=None, s
             self.total_charge = total_charge
         if duties_and_taxes is not None:
             self.duties_and_taxes = duties_and_taxes
-        if estimated_delivery is not None:
-            self.estimated_delivery = estimated_delivery
+        if transit_days is not None:
+            self.transit_days = transit_days
         if extra_charges is not None:
             self.extra_charges = extra_charges
 
@@ -318,29 +316,27 @@ def duties_and_taxes(self, duties_and_taxes):
         self._duties_and_taxes = duties_and_taxes
 
     @property
-    def estimated_delivery(self):
-        """Gets the estimated_delivery of this Rate.  # noqa: E501
+    def transit_days(self):
+        """Gets the transit_days of this Rate.  # noqa: E501
 
-        The estimated delivery date  # noqa: E501
+        The estimated delivery transit days  # noqa: E501
 
-        :return: The estimated_delivery of this Rate.  # noqa: E501
-        :rtype: str
+        :return: The transit_days of this Rate.  # noqa: E501
+        :rtype: int
         """
-        return self._estimated_delivery
+        return self._transit_days
 
-    @estimated_delivery.setter
-    def estimated_delivery(self, estimated_delivery):
-        """Sets the estimated_delivery of this Rate.
+    @transit_days.setter
+    def transit_days(self, transit_days):
+        """Sets the transit_days of this Rate.
 
-        The estimated delivery date  # noqa: E501
+        The estimated delivery transit days  # noqa: E501
 
-        :param estimated_delivery: The estimated_delivery of this Rate.  # noqa: E501
-        :type: str
+        :param transit_days: The transit_days of this Rate.  # noqa: E501
+        :type: int
         """
-        if estimated_delivery is not None and len(estimated_delivery) < 1:
-            raise ValueError("Invalid value for `estimated_delivery`, length must be greater than or equal to `1`")  # noqa: E501
 
-        self._estimated_delivery = estimated_delivery
+        self._transit_days = transit_days
 
     @property
     def extra_charges(self):