def collectDiagnostics(connection, sessionUrl, zipFilePath, clientOnly=False):
    '''
         This method will perform a POST request to collect log files and packages them into a ZIP file.

         Args:
         - connection is the connection object that manages the HTTP data transfers between the client and the REST API
         - sessionUrl is the address of the session to collect diagnostics for
         - zipFilePath is the local zip path on the machine that holds the IxLoad instance
    '''
    collectDiagnosticsUrl = "%s/ixload/test/activeTest/operations/collectDiagnostics" % (sessionUrl)
    data = {"zipFileLocation": zipFilePath, "clientOnly": clientOnly}

    performGenericOperation(connection, collectDiagnosticsUrl, data)