How do I set the baseurl in restsharp as string in my method?

private static bool setBaseURL(string baseURL)
      {
          if (baseURL == null || baseURL.Empty())
          {
              Console.WriteLine("Please pass the correct base URL....");
              return false;
          }
          try
          {
              RestClient client = new RestClient();
              client.BaseUrl = baseURI; //Here is where I want to set it
              return true;
          }
          catch (Exception e)
          {
              Console.WriteLine(e.Message);
              return false;
          }

      }

public static IRestResponse doGet(string contentType, string baseURI, string basePath,
        string token, Dictionary<String, String> paramsMap)
    {
        if (setBaseURI(baseURI))
        {
            IRestRequest request = sendRequest(contentType, token, paramsMap);
            return getResponse("GET", request, basePath);
        }
        return null;

    }




    public static IRestResponse doPost(string contentType, string baseURI, string basePath,
       string token, Dictionary<String, String> paramsMap, Object obj)
    {
        if (setBaseURI(baseURI))
        {
            IRestRequest request = sendRequest(contentType, token, paramsMap);
            addRequestPayload(request, obj);
            return getResponse("POST", request, basePath);
        }
        return null;

    }

client.BaseHost = baseURI