docstr: Returns a list of the sizes of the next four numbers given a key
  byte.
docstr_tok: ["Returns","a","list","of","the","sizes","of","the","next","four","numbers","given","a","key","byte","."]
code: def key_to_sizes(self, key):
      """Returns a list of the sizes of the next four numbers given a key
      byte.
      """
  
      return [(key >> (i * 2) & 3) + 1 for i in xrange(4)]
  
imports: from array import array
  from whoosh.compat import xrange
  from whoosh.system import emptybytes
  from whoosh.system import pack_byte, unpack_byte
  from whoosh.system import pack_ushort_le, unpack_ushort_le
  from whoosh.system import pack_uint_le, unpack_uint_le
label_desc: Use image node_id 1 for calling the GInts obj's underlying member method code with example usage: obj.key_to_sizes(key) and returns: unknown