---
title: Examine
description: API reference for all public classes and functions.
canonical: 'https://lightning.ai/docs/thunder/stable/api-reference/examine'
---
# Examine {#examine}

- [`examine`](/docs/thunder/0.2.6/api-reference/generated/thunder.examine.examine.md) — show_call_stack: bool | int=False:  if you pass True, a call stack will be printed for each invocation of an unknown function. If you pass a number, the stack will be limited to a depth of that value.

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