clarification on kernel type checks in sefr.py

[huzwares]

Hello there,
I was reading through your code (currently looking at sefr.py) and noticed that in some places the kernel type is checked even though the subsequent code is identical regardless of the condition. For example, on line 261:

if self.kernel == "precomputed":
    _check_n_features(self, X=X, reset=True)
    _check_feature_names(self, X=X, reset=True)
else:
    _check_n_features(self, X=X, reset=True)
    _check_feature_names(self, X=X, reset=True)

Both branches of the conditional execute the same code.
Similarly, in the _check_X_y method, it seems possible to move the kernel check to after X and y are set. Or in the _check_X method, the kernel check might also be deferred until after the hasattr() function call.
Is there a specific reason for doing it this way, for example, to support a planned feature in the future that might need the separation? also, are you currently open to pull requests for improvements like this?