feat(tokens): Add a modify_meta script.

Author: Blckbrry-Pi

modules/tokens/tests/meta.ts

@@ -0,0 +1,20 @@
+import { test, TestContext } from "../module.gen.ts";
+import {
+	assertEquals,
+	assertExists,
+} from "https://deno.land/std@0.217.0/assert/mod.ts";
+
+const METADATA = { meta: "data", test: "data" };
+
+test("get_and_check_meta", async (ctx: TestContext) => {
+	const { token } = await ctx.modules.tokens.create({
+		type: "test",
+		meta: METADATA,
+	});
+
+	const { tokens: [returnedToken] } = await ctx.modules.tokens.fetch({
+		tokenIds: [token.id],
+	});
+	assertExists(returnedToken);
+	assertEquals(returnedToken.meta, METADATA);
+});