+SRD_PRIV int srd_decoder_searchpath_add(const char *path);
+SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di, PyObject *args);
+SRD_PRIV int srd_inst_decode(uint64_t start_samplenum,
+ const struct srd_decoder_inst *dec,
+ const uint8_t *inbuf, uint64_t inbuflen);
+SRD_PRIV void srd_inst_free(struct srd_decoder_inst *di);
+SRD_PRIV void srd_inst_free_all(GSList *stack);
+SRD_PRIV int srd_inst_pd_output_add(struct srd_decoder_inst *di,
+ int output_type, const char *output_id);