Call variable under a PS script as a parameter in Jenkins

I have a config.ps1 script which has a variable "$versionNumber = “1.0.0"”. I need enter the variable value of users choice and save the config.ps1 file. I need to do this task using Jenkins Parameter.

My config.ps1

#------------------------------------------------

Pack parameters used to create the .nupkg file.

#------------------------------------------------

Specify the Version Number to use for the NuGet package. If not specified, the version number of the assembly being packed will be used.

NuGet version number guidance: https://docs.nuget.org/docs/reference/versioning and the Semantic Versioning spec: http://semver.org/

e.g. “” (use assembly’s version), “1.2.3” (stable version), “1.2.3-alpha” (prerelease version).

$versionNumber = “1.0.0”

Specify any Release Notes for this package.

These will only be included in the package if you have a .nuspec file for the project in the same directory as the project file.

$releaseNotes = “”

Specify a specific Configuration and/or Platform to only create a NuGet package when building the project with this Configuration and/or Platform.

e.g. $configuration = “Release”

$platform = “AnyCPU”

$configuration = “”
$platform = “”

I’m unfortunately unfamiliar with how Jenkins passes information to scripts.