v3.2.1: add instrument info response type. add cursor example with unified margin request

examples/rest-unified-margin-public-cursor.ts

@@ -0,0 +1,36 @@
+import { UnifiedMarginClient } from '../src/index';
+
+// or
+// import { UnifiedMarginClient } from 'bybit-api';
+
+const client = new UnifiedMarginClient({
+  strict_param_validation: true,
+});
+
+(async () => {
+  try {
+    // page 1
+    const historicOrders1 = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '2',
+    });
+    console.log('page 1:', JSON.stringify(historicOrders1, null, 2));
+
+    // page 2
+    const historicOrders2 = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '2',
+      cursor: historicOrders1.result.nextPageCursor,
+    });
+    console.log('page 2:', JSON.stringify(historicOrders2, null, 2));
+
+    // page 1 & 2 in one request (for comparison)
+    const historicOrdersBoth = await client.getInstrumentInfo({
+      category: 'linear',
+      limit: '4',
+    });
+    console.log('both pages', JSON.stringify(historicOrdersBoth, null, 2));
+  } catch (e) {
+    console.error('request failed: ', e);
+  }
+})();