> For the complete documentation index, see [llms.txt](https://docs.r.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.r.xyz/glider-ide/api/instruction/instruction.builtin_callee_names.md).

# Instruction.builtin\_callee\_names()

Returns the list of builtin call names that are called from the instruction. E.g. keccak256, ecrecover...

`builtin_callee_names() → List[str]`

## Query Example

```python
from glider import *


def query():
  instructions = Instructions().with_callee_name("keccak256").exec(1)

  print(instructions[0].builtin_callee_names())

  return instructions
```

## Example Output

<figure><img src="https://2237101709-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FDX4Ojc4j1ef51TUAtYOx%2Fuploads%2FWrdslwDpJfsjjQGlUhvh%2FScreenshot%202025-09-03%20at%2011.13.46%E2%80%AFAM.png?alt=media&amp;token=0a15fac5-c6d0-448a-bca8-8e7079e05ae0" alt=""><figcaption></figcaption></figure>