How to list all sites and subsites in SharePoint Online using PowerShell?

function Get-SPOWebs(){

param(

   $Url = $(throw "Please provide a Site Collection Url"),

   $Credential = $(throw "Please provide a Credentials")

)

  $context = New-Object Microsoft.SharePoint.Client.ClientContext($Url)  

  $context.Credentials = $Credential 

  $web = $context.Web

  $context.Load($web)

  $context.Load($web.Webs)

  $context.ExecuteQuery()

  foreach($web in $web.Webs)

  {

       Get-SPOWebs -Url $web.Url -Credential $Credential 

       $web

  }

}