def get_subs_dict(self, qnodes=None):
        """
        Return substitution dict for replacements into the template
        Subclasses may want to customize this method.
        """
        #d = self.qparams.copy()
        d = self.qparams
        d.update(self.optimize_params(qnodes=qnodes))
        # clean null values
        subs_dict = {k: v for k, v in d.items() if v is not None}
        #print("subs_dict:", subs_dict)
        return subs_dict
def get_subs_dict ( self , qnodes = None ) : d = self . qparams d . update ( self . optimize_params ( qnodes = qnodes ) ) subs_dict = { k : v for k , v in d . items ( ) if v is not None } return subs_dict
Return substitution dict for replacements into the template
        Subclasses may want to customize this method.