docs: def get_sample(self, md5):
          """ Get a sample from the DataStore.
              Args:
                  md5: the md5 of the sample
              Returns:
                  A dictionary of meta data about the sample which includes
                  a ['raw_bytes'] key that contains the raw bytes.
              Raises:
                  Workbench.DataNotFound if the sample is not found.
          """
          # First we try a sample, if we can't find one we try getting a sample_set.
          sample = self.data_store.get_sample(md5)
          if not sample:
              return {'sample_set': {'md5_list': self.get_sample_set(md5)}}
          return {'sample': sample}