SharePoint Online: PowerShell to Get List Permissions

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
  
#Function to Get List Permissions
Function Get-SPOListPermission([String]$SiteURL, [String]$ListName)
{
    Try{
        #Setup the context
        $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
        $Ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.Username, $Cred.Password)
      
        #Get the List
        $List = $Ctx.Web.Lists.GetByTitle($ListName)
        $Ctx.Load($List)
        $Ctx.ExecuteQuery()
 
        #Get permissions assigned to the List
        $RoleAssignments = $List.RoleAssignments
        $Ctx.Load($RoleAssignments)
        $Ctx.ExecuteQuery()
 
        #Loop through each permission assigned and extract details
        $PermissionCollection = @()
        Foreach($RoleAssignment in $RoleAssignments)
        { 
            $Ctx.Load($RoleAssignment.Member)
            $Ctx.executeQuery()
 
            #Get the User Type
            $PermissionType = $RoleAssignment.Member.PrincipalType
 
            #Get the Permission Levels assigned
            $Ctx.Load($RoleAssignment.RoleDefinitionBindings)
            $Ctx.ExecuteQuery()
            $PermissionLevels = ($RoleAssignment.RoleDefinitionBindings | Select -ExpandProperty Name) -join ","
             
            #Get the User/Group Name
            $Name = $RoleAssignment.Member.Title # $RoleAssignment.Member.LoginName
 
            #Add the Data to Object
            $Permissions = New-Object PSObject
            $Permissions | Add-Member NoteProperty Name($Name)
            $Permissions | Add-Member NoteProperty Type($PermissionType)
            $Permissions | Add-Member NoteProperty PermissionLevels($PermissionLevels)
            $PermissionCollection += $Permissions
        }
        Return $PermissionCollection
    }
    Catch {
    write-host -f Red "Error Getting List Permissions!" $_.Exception.Message
    }
}
  
#Set Config Parameters
$SiteURL="https://crescenttech.sharepoint.com/sites/Marketing"
$ListName="Documents"
$ReportFile = "C:\Temp\ListPermissions.csv"
  
#Get Credentials to connect
$Cred= Get-Credential
  
#Call the function to Get List Permissions
$ListPermissions = Get-SPOListPermission $SiteURL $ListName

#Get List Permissions
$ListPermissions

#Export List Permissions to CSV File
$ListPermissions | Export-CSV $ReportFile -NoTypeInformation