How to handle pip deps from a private source?

[anabiman]

I am currently using poetry to pull python pkgs from a private index (see section of my pyproject.toml file below).

[[tool.poetry.source]]
name = "private-channel"
url = "utl-private-index"
priority = "explicit"

[tool.poetry.dev-dependencies]
pip_pkg = {version = ">=x.x.x", source ="private-channel"

I configure poetry with a private access token so it can have access to the private channel. How can I do something similar with unidep?