Is there an option to pass extra marker to poetry install?

[bhoppeadoy]

Describe the Enhancement

Need a way to specify extra markers to pass to poetry install. For example:

poetry install -E somemarker

Possible Solution

Similar to the $BP_POETRY_INSTALL_ONLY env var, perhaps a $BP_POETRY_INSTALL_EXTRAS env var that takes a comma separated list of markers.

Setting $BP_POETRY_INSTALL_EXTRAS=marker1,marker2 would then produce this:

poetry install -E marker1 -E marker2

Motivation

I need to be able to build a project that requires setting a marker to install a specific package type.