how to fix in vs code

PS C:$\backslash$Users$\backslash$user$\backslash$OneDrive$\backslash$Documents$\backslash$Programming$\_$with$\_$functions$\_$BYU$>$ pip install tense$-$randomizer

pip : The term 'pip' 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.

At line:$1$ char:$2$

$+$ pip install tense$-$randomizer

$+$ ~~~

$+$ CategoryInfo : ObjectNotFound: $($pip:String$)[],$ CommandNotFoundException

$+$ FullyQualifiedErrorId : CommandNotFoundException