galaxies
    galaxy
        redshift                                                                          0.5
        light
            centre                                                                        (0.0, 0.0)
            axis_ratio                                                                    1.0
            phi                                                                           0.0
            intensity                                                                     1.0
            effective_radius                                                              0.6
            sersic_index                                                                  4.0
    source
        redshift                                                                          1.0
        pixelization
            weight_floor                                                                  0.0
            weight_power                                                                  0.0
        regularization
            coefficient                                                                   1.0