feat: tracing lib

[gustavocidornelas]

Summary

• Introduces tracing to the TS SDK.
• In TS, the traced functions should be wrapped by the higher-order function trace. E.g.,

import { trace } from 'openlayer/lib/tracing/tracer'

function preparePrompt(input: string): { role: string; content: string }[] {
   return [
     { role: 'system', content: 'You are a helpful assistant.' },
     { role: 'user', content: input },
  ];
 }
const tracedPreparePrompt = trace(preparePrompt)

• Introduces the OpenAI tracer, which follows a similar syntax to the Python SDK one. Namely:

import { traceOpenAI } from 'openlayer/lib/integrations/openAiTracer';

const client = traceOpenAI(new OpenAI());

async function main(input: string): Promise<string> {
  const response = await client.chat.completions.create({
    stream: true,
    model: 'gpt-4o',
    messages: [
      { role: 'user', content: input},
    ]
  });
  }
  return '';
}

// Run the main function
main('Are you an AI or an actual human?').catch(console.error);