parameters: (data_points)
return_statement: return NormalizeCounter(mapping)
docstring: Counts proportion of data for every SSRC.
  
    Args:
       data_points: list of pb_parse.DataPoint
  
    Returns:
       A dictionary mapping from every SSRC in the data points. The
       value of an SSRC `s` is the proportion of sizes of packets with
       SSRC `s` to the total size of all packets.
docstring_summary: Counts proportion of data for every SSRC.
docstring_tokens: Counts proportion of data for every SSRC .
function: def SsrcNormalizedSizeTable(data_points):
      """Counts proportion of data for every SSRC.
  
    Args:
       data_points: list of pb_parse.DataPoint
  
    Returns:
       A dictionary mapping from every SSRC in the data points. The
       value of an SSRC `s` is the proportion of sizes of packets with
       SSRC `s` to the total size of all packets.
  
    """
      mapping = collections.defaultdict(int)
      for point in data_points:
          mapping[point.ssrc] += point.size
      return NormalizeCounter(mapping)
function_tokens: def SsrcNormalizedSizeTable ( data_points ) : mapping = collections . defaultdict ( int ) for point in data_points : mapping [ point . ssrc ] += point . size return NormalizeCounter ( mapping )