[convert to ewoks] clean a few 'run' function signature

est/core/process/io.py

@@ -66,9 +66,10 @@ class DumpXasObject(Process):
         """definition of the process"""
         return "write xas object to a file"
 
-    def run(self, xas_object=None):
+    def run(self):
+        xas_object = self.inputs.xas_obj
         if xas_object is None:
-            xas_object = self.inputs.xas_obj
+            raise ValueError("xas_obj should be provided")
         if isinstance(xas_object, dict):
             xas_object = XASObject.from_dict(xas_object)
         if not isinstance(xas_object, XASObject):

est/core/process/noise.py

@@ -169,7 +169,7 @@ class NoiseProcess(Process):
         if "polynomial_order" in properties:
             self._polynomial_order = properties["polynomial_order"]
 
-    def run(self, xas_obj):
+    def run(self):
         """
 
         :param xas_obj: object containing the configuration and spectra to process

est/core/process/roi.py

@@ -174,7 +174,7 @@ class ROIProcess(Process):
         xas_obj.spectra.reshape((roi.size[1], roi.size[0]))
         return xas_obj
 
-    def run(self, xas_obj):
+    def run(self):
         """
 
         :param xas_obj: object containing the configuration and spectra to process