{
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  "coupling_objective_weight": 0.02,
  "enforce_reflection_symmetry": true,
  "learning_rate": 0.0005,
  "local_half_span": 0.0023,
  "local_sample_points": 29,
  "maximum_backtracks": 2,
  "maximum_pml_energy_fraction": 0.25,
  "maximum_pole_shift_in_halfwidths": 1.0,
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  "minimum_current_ldos_retention": 0.98,
  "minimum_field_overlap": 0.985,
  "minimum_gap_energy_fraction": 0.55,
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  "minimum_inner_energy_fraction": 0.85,
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}
