Call script in conda

How can I call the script correctly? Here’s how my Miniconda3 window looks like

(base) PS C:> conda activate foo
(foo) PS C:> vmtkimagereader
vmtkimagereader : The term ‘vmtkimagereader’ is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

I use pypes. Pypes Documentation Link

Example (paths are strings):

from vmtk import pypes

vmtkCommand = r'vmtkcenterlines -ifile ' + modelPath + r' -ofile ' + centerlinePath
myPype = pypes.PypeRun(vmtkCommand)