export extern for core

Define an extern and export it from a module.

Signature

> export extern (def_name) (params)

Parameters

• def_name: definition name
• params: parameters

Notes

This command is a parser keyword. For details, check: https://www.nushell.sh/book/thinking_in_nu.html

Examples

Export the signature for an external command

> export extern echo [text: string]