Powershell script Pssesion

Question

My question is if I m running this script on multiple remote computers, the session will automatically close or I need to close??

and if a New-PSSesion is not closed is there any impact on remote computer?


$computers = Get-Content -Path E:\Newfolder\Input\List_computers.txt

$password = convertTo-SecureString "123456" -AsPlainText -Force

$cred = New-Object System.Management.Automation.PSCredential ("user", $password)

$session = New-PSSession -ComputerName $computers -Credential $cred

$command = {Get-LocalUser| where-Object -Property Enabled -EQ True | Select-Object -Property  Name, Enabled, Description }

$res = Invoke-Command -Session $session -ScriptBlock $command | Export-Csv