code: def get_by_index(self, index):
          
          index -= 1
          if 0 <= index < len(CocaineHeaders.STATIC_TABLE):
              return CocaineHeaders.STATIC_TABLE[index]
          index -= len(CocaineHeaders.STATIC_TABLE)
          if 0 <= index < len(self.dynamic_entries):
              return self.dynamic_entries[index]
          raise InvalidTableIndex("Invalid table index %d" % index)
docs: Returns the entry specified by index
  
          Note that the table is 1-based ie an index of 0 is
          invalid.  This is due to the fact that a zero value
          index signals that a completely unindexed header
          follows.
  
          The entry will either be from the static table or
          the dynamic table depending on the value of index.