def METHOD_NAME(solverin):
    solver_dict = {
        "solver": solverin,
        #'solver_type':solvertypein,
        #'spatial_order':1,
        #'angular_quadrature_order':4,
        #'angular_quadrature_type':1,
        "nodes_xyz": [4, 4, 4],
        "num_groups": 1,
        "num_materials": 1,
        "x_cells_widths": cell_widths,
        "y_cells_widths": cell_widths,
        "z_cells_widths": cell_widths,
        "x_boundry_conditions": [2, 2],
        "y_boundry_conditions": [2, 2],
        "z_boundry_conditions": [2, 2],
        "material_id": [[[1] * 4] * 4] * 4,
        "quadrature_file": "spatial_solvers/quad_file",
        "xs_file": "spatial_solvers/xs",
        "source_input_file": "spatial_solvers/src_4.dat",
        "bc_input_file": "spatial_solvers/bc_4.dat",
        "flux_output_file": "spatial_solvers/phi_4.ahot",
        #'convergence_criterion':1.e-12,
        #'max_iterations':6000,
        #'moments_converged':0,
        #'converge_tolerence':1.e-10
    }
    return solver_dict