[OMSessionRunner] fix usage of sendExpression()

Author: syntron

OMPython/OMCSession.py

@@ -1881,5 +1881,5 @@ def omcpath_tempdir(self, tempdir_base: Optional[OMPathABC] = None) -> OMPathABC
 
         return self._tempdir(tempdir_base=tempdir_base)
 
-    def sendExpression(self, command: str, parsed: bool = True) -> Any:
+    def sendExpression(self, expr: str, parsed: bool = True) -> Any:
         raise OMCSessionException(f"{self.__class__.__name__} does not uses an OMC server!")