What is the meaning of the null result and validation errors present in the response JSON of RestSharp - C#, specifically indicating that both the username and password are null?

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A null result and validation errors in the response JSON of RestSharp indicate that there was an error or issue with the request being made. In this specific case, it means that the username and password parameters were not properly included or sent in the request, resulting in a null value for both. This could be due to a variety of reasons such as incorrect parameter names, missing or incomplete request headers, or incorrect authentication credentials. It is important to review the specific error message provided in the response to identify the root cause of the issue and make the necessary changes to the request to correctly include the required parameters.