'New-AzureStorageContext' is not recognized

$destinationContext = (New-AzureStorageContext -StorageAccountName $destinationAccountName -StorageAccountKey $destinationAccountKey)
$sourceContext = (New-AzureStorageContext -StorageAccountName $prodAccountName -StorageAccountKey $prodAccountKey)

$allContainers = Get-AzureStorageContainer -Context $sourceContext

$startTime = Get-Date -Format "yyyyMMddhhmmss"
foreach ($container in $allContainers.Name)
{
    $allBlobs = (Get-AzureStorageBlob -Container $container -Context $sourceContext).Name

    foreach -Parallel ($blob in $allBlobs)
    {
        InlineScript {
            $destinationContext = (New-AzureStorageContext -StorageAccountName $using:destinationAccountName -StorageAccountKey $using:destinationAccountKey)
            $sourceContext = (New-AzureStorageContext -StorageAccountName $using:prodAccountName -StorageAccountKey $using:prodAccountKey)

            $fileName = $using:startTime + "/" + $using:container + "/" + $using:blob
            Write-Information "Copying $fileName"
            Start-AzureStorageBlobCopy -SrcBlob $using:blob -DestBlob $fileName -SrcContainer $using:container -Context $sourceContext -DestContext $destinationContext -DestContainer $using:destinationContainer
       }
    }
} 

    public StorageCredentials(string sasToken)
    {
        CommonUtility.AssertNotNullOrEmpty("sasToken", sasToken);

        this.SASToken = sasToken;
        this.UpdateQueryBuilder();
    }

    private void UpdateQueryBuilder()
    {
        SasQueryBuilder newQueryBuilder = new SasQueryBuilder(this.SASToken);

        newQueryBuilder.Add(Constants.QueryConstants.ApiVersion, Constants.HeaderConstants.TargetStorageVersion);

        this.queryBuilder = newQueryBuilder;
    }

PowerMockito.mockStatic(TRDIUtils.class)

PowerMockito.when(TRDIUtilsstrToInteger(newValueIn)).thenReturn(0);

Enable-AzureRmAlias [-Module <string>] [-Scope Process | CurrentUser | LocalMachine]

Disable-AzureRmAlias [-Module <string[]>] [-Scope Process | CurrentUser | LocalMachine]