def __init__(self, phase_name, phase_tag=None, phase_folders=None, tag_phases=True,<EOL>optimizer_class=non_linear.MultiNest,<EOL>cosmology=cosmo.Planck15, auto_link_priors=False):
super().__init__(phase_name=phase_name, phase_tag=phase_tag, phase_folders=phase_folders, tag_phases=tag_phases,<EOL>optimizer_class=optimizer_class, auto_link_priors=auto_link_priors)<EOL>self.cosmology = cosmology<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
phase_name: str
    The name of this phase