parameters: (c1, c2)
return_statement: return trimseq(ret)
docstring: Helper function used to implement the ``<type>add`` functions.
docstring_summary: Helper function used to implement the ``<type>add`` functions.
docstring_tokens: Helper function used to implement the <type > add functions .
function: def _add(c1, c2):
      """ Helper function used to implement the ``<type>add`` functions. """
      # c1, c2 are trimmed copies
      [c1, c2] = as_series([c1, c2])
      if len(c1) > len(c2):
          c1[:c2.size] += c2
          ret = c1
      else:
          c2[:c1.size] += c1
          ret = c2
      return trimseq(ret)
function_tokens: def _add ( c1 , c2 ) : # c1, c2 are trimmed copies [ c1 , c2 ] = as_series ( [ c1 , c2 ] ) if len ( c1 ) > len ( c2 ) : c1 [ : c2 . size ] += c2 ret = c1 else : c2 [ : c1 . size ] += c1 ret = c2 return trimseq ( ret )