Contains the operations exposed by the Clarizen web serviceLogs in to the Clarizen API server and starts a session @param userName Login user name @param password Login password @param options Additional options such as partnerId and applicationId @return a <see cref="LoginResult" /> with the new session IdTerminates an active web services sessionExecutes a Metadata request. This is the same as sending a <see cref="MetadataMessage" /> to the <see cref="Execute" /> method @param request a Metadata request @return Returns an instance of a <see cref="Result" />. You must cast this to the specific instance corresponding to the <c>request</c> parameter.Perform operations against the Clarizen web services @param request An array of requests derived from <see cref="BaseMessage" /> @return An array of <see cref="Result" /> corresponsding to each request. You must cast each result to the specific instance that corresponds to the request parameter. See the remarks section for more information