Public/Get-Customers.ps1

function Get-Customers {
    [OutputType([Microsoft.Graph.Contract])]
    Param()
    process {
        Connect-CustomerGraph -CustomerTenantId $PartnerTenantId
        try {
            $Customers = Get-MgContract -All
        }
        catch {
            Write-Error "Failed to retreive customers from MS Graph: $_"
        }
        $Customers
    }
}