app/node_modules/langsmith/dist/env.js

import { getLangSmithEnvironmentVariable } from "./utils/env.js";
export const isTracingEnabled = (tracingEnabled) => {
    if (tracingEnabled !== undefined) {
        return tracingEnabled;
    }
    const envVars = ["TRACING_V2", "TRACING"];
    return !!envVars.find((envVar) => getLangSmithEnvironmentVariable(envVar) === "true");
};