call = client.calls.create(
    agent_id=agent.id,
    to_number="+12125557890",
    # optional per-call overrides:
    system_prompt="You are confirming an appointment.",
    initial_greeting="Hi, calling about your appointment tomorrow.",
)

const call = await client.calls.create({
    agentId: agent.id,
    toNumber: "+12125557890",
    systemPrompt: "You are confirming an appointment.",
    initialGreeting: "Hi, calling about your appointment tomorrow.",
});

client.calls.hangup(call.id)
client.calls.get(call.id)
transcript = client.calls.get_transcript(call.id)
client.calls.list(status="completed")

await client.calls.hangup(call.id);
await client.calls.get(call.id);
const transcript = await client.calls.getTranscript(call.id);
await client.calls.list({ status: "completed" });

client.calls.push_context(call.id, turn_id="turn_xxx", context="Your order ships Tuesday.")

await client.calls.pushContext(call.id, { turnId: "turn_xxx", context: "Your order ships Tuesday." });