def IdentifiersConcat():
 def step(ctxt, key, val):
  ctxt.append((u'%s:%s' % (key, val)))
 def finalize(ctxt):
  return u','.join(ctxt)
 return ([], step, finalize)

def IdentifiersConcat ( ) : def step ( ctxt , key , val ) : ctxt . append ( ( u'%s:%s' % ( key , val ) ) ) def finalize ( ctxt ) : return u',' . join ( ctxt ) return ( [ ] , step , finalize )
string concatenation aggregator for the identifiers map .