# heidi · Rell standard library · Chromia Docs (concept)

> val heidi: byte_array = x"9999999999999999999999999999999999999999999999999999999999999999" A private key representing the actor heidi. Not secure - unsuit

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/rell.test.privkeys/heidi/

PROPERTY

# heidi

```signature
val heidi: byte_array = x"9999999999999999999999999999999999999999999999999999999999999999"
```

A private key representing the actor heidi.

**Not secure - unsuitable for production usage.**

Since 0.10.4

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/rell.test.privkeys/heidi.html)Generated API reference, mirrored from the live docs