+/** \brief returns diagnostics from an init response
+ \param no number of diagnotic entry to get. 0=first, 1=second, ..
+ \param initrs InitResponse structure
+ \returns diag entry or 0 (NULL) if none could be found
+*/
+YAZ_EXPORT
+Z_DefaultDiagFormat *yaz_decode_init_diag(int no, Z_InitResponse *initrs);