code: def test_solve_quadratic(
      self, coeffs, expected_solutions, device, dtype
  ):
      roots = solver.solve_cubic(coeffs)
      assert_close(
          roots[0], expected_solutions[0], rtol=1e-3, atol=1e-3
      )
  
file_path: kornia/test/geometry/solvers/test_polynomial_solver.py
imports: import pytest
  import torch
  from torch.autograd import gradcheck
  import kornia.geometry.solvers
  from kornia.testing import assert_close
label_desc: Use image node_id 3 for calling the TestCubicSolver obj's underlying member method code with example usage: obj.test_solve_quadratic(coeffs, expected_solutions, device, dtype) without return types