ros2 pkg create ... --dependencies option doesn't function

edit

I am trying to pre-include the package dependencies known before hand with the command:

ros2 pkg create --build-type ament_python my_ros_pkg --dependencies geometry_msgs

However searching for the dependencies for the newly created package don't seem to exist:

vscode ➜ .../ros/humble/rfp_ws/src $ grep -riF geometry_msgs my_ros_py_pkg/
vscode ➜ .../ros/humble/rfp_ws/src $ grep -ri geometry_msgs my_ros_py_pkg/
vscode ➜ .../ros/humble/rfp_ws/src $

I'm using a DevContainer/Docker'ized develop environment using ROS Humble:

vscode ➜ .../ros/humble/rfp_ws/src $ env | grep ROS
ROS_VERSION=2
ROS_PYTHON_VERSION=3
ROS_LOCALHOST_ONLY=0
ROS_DISTRO=humble

What did I do wrong?

/Henrik