Support Invoice APIs

lib/PayPal/Api/Currency.php

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+<?php
+namespace PayPal\Api;
+
+use PayPal\Common\PPModel;
+use PayPal\Rest\ApiContext;
+
+class Currency extends PPModel {
+	/**
+	 * 3 letter currency code
+	 *
+	 * @param string $currency
+	 */
+	public function setCurrency($currency) {
+		$this->currency = $currency;
+		return $this;
+	}
+
+	/**
+	 * 3 letter currency code
+	 *
+	 * @return string
+	 */
+	public function getCurrency() {
+		return $this->currency;
+	}
+
+
+	/**
+	 * amount upto 2 decimals represented as string
+	 *
+	 * @param string $value
+	 */
+	public function setValue($value) {
+		$this->value = $value;
+		return $this;
+	}
+
+	/**
+	 * amount upto 2 decimals represented as string
+	 *
+	 * @return string
+	 */
+	public function getValue() {
+		return $this->value;
+	}
+
+
+}