Merge branch 'ft-1397-resolving-misusage-no-models-ptandloggenerator'…

… into 'integration'

FT 1397 Resolving misusage of no_models in ptandloggenerator

See merge request process-mining/pm4py/pm4py-core!533

pm4py/algo/simulation/tree_generator/variants/ptandloggenerator.py

@@ -107,13 +107,25 @@ def apply(parameters: Optional[Dict[Union[str, Parameters], Any]] = None) -> obj
     if not "infrequent" in parameters:
         parameters["infrequent"] = 0.5
     if not "no_models" in parameters:
-        parameters["no_models"] = 10
+        parameters["no_models"] = 1
     if not "unfold" in parameters:
         parameters["unfold"] = 10
     if not "max_repeat" in parameters:
         parameters["max_repeat"] = 10
 
-    return GeneratedTree(parameters).generate()
+    no_models = parameters["no_models"]
+
+    if no_models == 1:
+        return GeneratedTree(parameters).generate()
+    else:
+        # if the generation of an higher number of models is required,
+        # proceed to the generation of these and return a list of
+        # process trees.
+        ret = []
+        for i in range(no_models):
+            ret.append(GeneratedTree(parameters).generate())
+        return ret
+
 
 def assign_operator(operator):
     if operator == "choice":