Get a hashtable of the parameters in your param block, useful for splatting.

Get-ParamBlock.ps1

using namespace system.collections.generic
function Get-ParamBlock ([String[]]$Name) {
    [hashset[string]]$params = $PSCmdlet.MyInvocation.MyCommand.Parameters.Keys
    $params.ExceptWith([string[]]([PSCmdlet]::CommonParameters + [PSCmdlet]::OptionalCommonParameters))
    $result = @{}
    if ($Name) {$params = $params -in $Name}
    foreach ($name in $params) {
        $result.$name = $PSCmdlet.GetVariableValue($name)
    }
    return $result
}