Avalara tax plugin. Error when address value was incomplete

[RomanovM]

If the customer doesn't provide the full address then the Avalara API returns the error message.

Tax.Avalara error. InvalidAddress - The address value was incomplete.
Details: The address value ShipTo was incomplete. You must provide either a valid postal code, line1 + city + region, or line1 + postal code.

Could you add this checking in the method?
I added checking "line1 + postal code + city".
The Postal code is mandatory, when I provided the city without line 1 then I got error message.

    public async Task<TaxRateResult> GetTaxRateAsync(TaxRateRequest taxRateRequest)
    {
        if (taxRateRequest.Address == null)
            return new TaxRateResult { Errors = new List<string> { "Address is not set" } };

        //You must provide either a valid postal code, line1 + city + region, or line1 + postal code.
        if (string.IsNullOrWhiteSpace(taxRateRequest.Address.ZipPostalCode)
           || string.IsNullOrWhiteSpace(taxRateRequest.Address.City)
           || string.IsNullOrWhiteSpace(taxRateRequest.Address.Address1)
           )
           return new TaxRateResult { Errors = new List<string> { "Address is not set" } };

        //get tax rate
        var taxRate = await _avalaraTaxManager.GetTaxRateAsync(taxRateRequest);
        if (!taxRate.HasValue)
            return new TaxRateResult { Errors = new List<string> { "No response from the service" } };

        return new TaxRateResult { TaxRate = taxRate.Value };
    }

Source: https://www.nopcommerce.com/boards/topic/101847/avalara-tax-provider