const firstMessage = ((event.messages as Array<Record<string, unknown>> | undefined) ?? [])[0];

expect(firstMessage).not.toHaveProperty("token");

expect(firstMessage).not.toHaveProperty("metadata.secretKey");

expect(firstMessage).toMatchObject({

role: "user",

metadata: {

label: "preserve-me",

},

expect(firstMessage?.role).toBe("user");

expect(firstMessage?.metadata).toEqual({

label: "preserve-me",

});

const source = (((firstMessage?.content as Array<Record<string, unknown>> | undefined) ?? [])[0]

?.source ?? {}) as Record<string, unknown>;