$User = "admin@tenant.onmicrosoft.com"
$Site = "https://tenant.sharepoint.com/sites/home"
$GroupName = "Group"
$TermSetName = "Term Set"

#Add references to SharePoint client assemblies and authenticate to Office 365 site - required for CSOM
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.dll"
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.Runtime.dll"
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.Taxonomy.dll"
$Password = Read-Host -Prompt "Please enter your password" -AsSecureString

# Bind to MMS
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($Site)
$Creds = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($User,$Password)
$Context.Credentials = $Creds
$MMS = [Microsoft.SharePoint.Client.Taxonomy.TaxonomySession]::GetTaxonomySession($Context)
$Context.Load($MMS)
$Context.ExecuteQuery()

$User = "admin@tenant.onmicrosoft.com"
$Site = "https://tenant.sharepoint.com/sites/home"
$GroupName = "Group"
$TermSetName = "Term Set"

#Add references to SharePoint client assemblies and authenticate to Office 365 site - required for CSOM
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.dll"
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.Runtime.dll"
Add-Type -Path "C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions16ISAPIMicrosoft.SharePoint.Client.Taxonomy.dll"
$Password = Read-Host -Prompt "Please enter your password" -AsSecureString

$spContext = New-Object Microsoft.SharePoint.Client.ClientContext($Site)
$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($User,$Password)
$spContext.Credentials = $credentials

$web = $spContext.Web
$site = $spContext.Site
$spContext.Load($web)
$spContext.Load($site)
$spContext.ExecuteQuery()

$MMS = [Microsoft.SharePoint.Client.Taxonomy.TaxonomySession]::GetTaxonomySession($spContext)
$Context.Load($MMS)
$Context.ExecuteQuery()