code: def __init__(ctx, *args, **kwargs):
      ctx._gauss_legendre = GaussLegendre(ctx)
      ctx._tanh_sinh = TanhSinh(ctx)
  
imports: import math
  from ..libmp.backend import xrange
label_desc: Use image node_id 1 to create a new QuadratureMethods object from inherited base classes: object with example: obj = QuadratureMethods(ctx)