def __init__(self, phase_name, tag_phases=None, phase_folders=None, lens_galaxies=None, source_galaxies=None,<EOL>sensitive_galaxies=None,<EOL>optimizer_class=non_linear.MultiNest, sub_grid_size=<NUM_LIT:2>, bin_up_factor=None, mask_function=None,<EOL>cosmology=cosmo.Planck15):
super(SensitivityPhase, self).__init__(phase_name=phase_name, tag_phases=tag_phases,<EOL>phase_folders=phase_folders,<EOL>optimizer_class=optimizer_class, sub_grid_size=sub_grid_size,<EOL>bin_up_factor=bin_up_factor, mask_function=mask_function,<EOL>cosmology=cosmology)<EOL>self.lens_galaxies = lens_galaxies or []<EOL>self.source_galaxies = source_galaxies or []<EOL>self.sensitive_galaxies = sensitive_galaxies or []<EOL>
A phase in an lens pipeline. Uses the set non_linear optimizer to try to fit models and hyper
passed to it.

Parameters
----------
optimizer_class: class
    The class of a non_linear optimizer
sub_grid_size: int
    The side length of the subgrid