code: def testQuadratic():
      mod = lmfit.models.QuadraticModel()
      x = np.linspace(-1, 1, 201)
      y = 0.3 * x * x + 10 * x + 2
      params = mod.make_params(a=0, b=5, c=1)
      check_fit(mod, params, x, y, dict(a=0.3, b=10, c=2))
  
file_path: lmfit-py/tests/test_models.py
imports: import numpy
  import lmfit
  from lmfit.lineshapes import gaussian
  from lmfit.models import GaussianModel, SplineModel
label_desc: Use image node_id 4 for calling a global function with example usage: testQuadratic() without return types