private async Task <TokenResponse> GetAccessTokenAsync(
QueryParameterBuilder queryParams,
CancellationToken cancellationToken)
{
var response = await _httpManager.PostAsync(
_authenticationParameters.AuthorityUri.GetTokenEndpoint(),
GetVersionHeaders(),
queryParams.ToHttpContent(),
cancellationToken).ConfigureAwait(false);
return(TokenResponse.Create(response.StatusCode, response.ResponseData));
}