'Standardize data across channels.
Parameters
epochs_data : array, shape (n_epochs, n_channels, n_times)
The data to concatenate channels.
y : array, shape (n_epochs,)
The label for each epoch.
Returns
self : instance of Scaler
Returns the modified instance.'

def fit(self, epochs_data, y):

    _sklearn_reshape_apply(self._scaler.fit, False, epochs_data, y)
    return self
