code: def __bilinear_interp(x, y, v11, v12, v21, v22):
      return (v11 * (1 - y) + v12 * y) * (1 - x) + (
          v21 * (1 - y) + v22 * y
      ) * x
  
imports: import numpy
label_desc: Use image node_id 2 for calling the WarpMLS obj's underlying member method code with example usage: obj.__bilinear_interp(x, y, v11, v12, v21, v22) and returns: unknown