docs: def store_sample(self, input_bytes, filename, type_tag):
          """ Store a sample into the DataStore.
              Args:
                  input_bytes: the actual bytes of the sample e.g. f.read()
                  filename: name of the file (used purely as meta data not for lookup)
                  type_tag: ('exe','pcap','pdf','json','swf', or ...)
              Returns:
                  the md5 of the sample.
          """
  
          # If the sample comes in with an unknown type_tag try to determine it
          if type_tag == 'unknown':
              print 'Info: Unknown File -- Trying to Determine Type...'
              type_tag = self.guess_type_tag(input_bytes, filename)
  
          # Do we have a compressed sample? If so decompress it
          if type_tag == 'lz4':
              input_bytes = lz4.loads(input_bytes)
  
          # Store the sample
          md5 = self.data_store.store_sample(input_bytes, filename, type_tag)
  
          # Add the type_tags to tags
          if type_tag != 'lz4':
              self.add_tags(md5, type_tag)
  
          return md5