Add and use getters for having model number of model inputs and outputs.

Author: alonre24

src/DAG/dag_builder.c

@@ -96,12 +96,12 @@ int RAI_DAGAddRunOp(RAI_DAGRunCtx *run_info, RAI_DAGRunOp *DAGop, RAI_Error *err
     RedisAI_RunInfo *rinfo = (RedisAI_RunInfo *)run_info;
     if (op->mctx) {
         RAI_Model *model = op->mctx->model;
-        if (model->ninputs != array_len(op->inkeys)) {
+        if (ModelGetNumInputs(model) != array_len(op->inkeys)) {
             RAI_SetError(err, RAI_EDAGBUILDER,
                          "Number of keys given as INPUTS does not match model definition");
             return REDISMODULE_ERR;
         }
-        if (model->noutputs != array_len(op->outkeys)) {
+        if (ModelGetNumOutputs(model) != array_len(op->outkeys)) {
             RAI_SetError(err, RAI_EDAGBUILDER,
                          "Number of keys given as OUTPUTS does not match model definition");
             return REDISMODULE_ERR;

src/model.c

@@ -254,6 +254,10 @@ int RedisAI_ModelRun_IsKeysPositionRequest_ReportKeys(RedisModuleCtx *ctx, Redis
 
 RedisModuleType *RAI_ModelRedisType(void) { return RedisAI_ModelType; }
 
+size_t ModelGetNumInputs(RAI_Model *model) { return model->ninputs; }
+
+size_t ModelGetNumOutputs(RAI_Model *model) { return model->noutputs; }
+
 int RAI_ModelRunAsync(RAI_ModelRunCtx *mctx, RAI_OnFinishCB ModelAsyncFinish, void *private_data) {
 
     RedisAI_RunInfo *rinfo = NULL;

src/model.h

@@ -144,6 +144,15 @@ int RedisAI_ModelRun_IsKeysPositionRequest_ReportKeys(RedisModuleCtx *ctx, Redis
  */
 RedisModuleType *RAI_ModelRedisType(void);
 
+/**
+ * @brief  Returns the number of inputs in the model definition.
+ */
+size_t ModelGetNumInputs(RAI_Model *model);
+
+/**
+ * @brief  Returns the number of outputs in the model definition.
+ */
+size_t ModelGetNumOutputs(RAI_Model *model);
 /**
  * Insert the ModelRunCtx to the run queues so it will run asynchronously.
  *