2.0.0 Release (#58)

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* add changelog

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Co-authored-by: PayPalServerSDKs <server-sdks@paypal.com>

doc/models/apple-pay-request-card.md

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+
+# Apple Pay Request Card
+
+The payment card to be used to fund a payment. Can be a credit or debit card.
+
+## Structure
+
+`ApplePayRequestCard`
+
+## Fields
+
+| Name | Type | Tags | Description | Getter | Setter |
+|  --- | --- | --- | --- | --- | --- |
+| `type` | [`?string(CardType)`](../../doc/models/card-type.md) | Optional | Type of card. i.e Credit, Debit and so on.<br><br>**Constraints**: *Minimum Length*: `1`, *Maximum Length*: `255`, *Pattern*: `^[A-Z_]+$` | getType(): ?string | setType(?string type): void |
+| `brand` | [`?string(CardBrand)`](../../doc/models/card-brand.md) | Optional | The card network or brand. Applies to credit, debit, gift, and payment cards.<br><br>**Constraints**: *Minimum Length*: `1`, *Maximum Length*: `255`, *Pattern*: `^[A-Z_]+$` | getBrand(): ?string | setBrand(?string brand): void |
+| `billingAddress` | [`?Address`](../../doc/models/address.md) | Optional | The portable international postal address. Maps to [AddressValidationMetadata](https://github.com/googlei18n/libaddressinput/wiki/AddressValidationMetadata) and HTML 5.1 [Autofilling form controls: the autocomplete attribute](https://www.w3.org/TR/html51/sec-forms.html#autofilling-form-controls-the-autocomplete-attribute). | getBillingAddress(): ?Address | setBillingAddress(?Address billingAddress): void |
+
+## Example (as JSON)
+
+```json
+{
+  "type": "PREPAID",
+  "brand": "PULSE",
+  "billing_address": {
+    "address_line_1": "address_line_12",
+    "address_line_2": "address_line_28",
+    "admin_area_2": "admin_area_28",
+    "admin_area_1": "admin_area_14",
+    "postal_code": "postal_code0",
+    "country_code": "country_code8"
+  }
+}
+```
+