Azure PowerShell 1.0 - Where is Get-AzureSBNamespace? -

i've been following blog create service bus namespace on azure using powershell 1.0. however, after logging azure using cmdlet login-azurermaccount (as described here) , attempting use cmdlet get-azuresbnamespace returns null reference exception, i.e.,

get-azuresbnamespace : object reference not set instance of object.

looking @ documentation powershell 1.0, there appears no reference cmdlets service bus services on azure, i.e., get-azuresbnamespace.

does azure powershell 1.0 support azure service bus (specifically eventhubs)?

i followed following link create service bus event hub , created succesfully.

as mentioned in above comments cant assign event hub resouce group comes under add-azure account cmd.

https://azure.microsoft.com/en-in/documentation/articles/service-bus-powershell-how-to-provision/