Bulk operation to reset specific field on template standard values

ResetTemplates.ps1

$baseTemplateId = "{20427F7C-8B5E-4799-A282-05376D978999}"

function IsTemplateStandardValue([Sitecore.Data.Items.Item]$item)
{
    $flag = $false
    $hasScriptTemplate = Test-BaseTemplate -Item $item -Template $baseTemplateId
    if ($hasScriptTemplate -and $item.Name -eq "__Standard Values")
    {
        $flag = $true
    }
    return $flag
}

New-UsingBlock (New-Object Sitecore.Data.BulkUpdateContext) {
    $path = '/sitecore/templates/CLIENTNAME/Features/Pages'

    Reset-ItemField -Path "master:/sitecore/templates/CLIENTNAME/Features/SEO/Page speed/ScriptsAndStyles/__Standard Values" -Name "ScriptStyleLinks"

    Get-ChildItem -Path master:$path -Recurse | Where-Object { IsTemplateStandardValue($_) -eq $true } | ForEach-Object { Reset-ItemField $_ -Name "ScriptStyleLinks" }
 
    Reset-ItemField -Path master:/sitecore/content/Websites/CLIENTNAME/home -Name "ScriptStyleLinks"
    
    Write-Host "Completed running!"
}