def fit(self, dcm_file1, dcm_file2):
self.set_dicom_file1(dcm_file1)<EOL>self.set_dicom_file2(dcm_file2)<EOL>
Parameters
----------
dcm_file1: str (path to file) or DicomFile or namedtuple

dcm_file2: str (path to file) or DicomFile or namedtuple