code: def get_process_rca(self, pid=None):
          '''
          get_process_rca(self, pid=None)
  
          Get the RCA tree of a given failed process. The RCA tree contains all failed child processes that caused the failure of the given process.
  
          :Parameters:
          * *pid* (`string`) -- Identifier of an existing process
  
          '''
          pid = self._get_pid(pid)
          return self._call_rest_api('get', '/processes/'+pid+'/rca', error='Failed to fetch process information'f get_process_rca(self, pid=None):
          '''
          get_process_rca(self, pid=None)
  
          Get the RCA tree of a given failed process. The RCA tree contains all failed child processes that caused the failure of the given process.
  
          :Parameters:
          * *pid* (`string`) -- Identifier of an existing process
  
          '''
          pid = self._get_pid(pid)
          return self._call_rest_api('get', '/processes/'+pid+'/rca', error='Failed to fetch process information')
docs: get_process_rca(self, pid=None)
  
          Get the RCA tree of a given failed process. The RCA tree contains all failed child processes that caused the failure of the given process.
  
          :Parameters:
          * *pid* (`string`) -- Identifier of an existing process