code: def get_updated_vector(self, rng, x0):
      return x0 + self.get_factor(rng) * rng.multivariate_normal(
          np.zeros(len(self.scale)), self.scale
      )
  
file_path: emcee/src/emcee/moves/gaussian.py
imports: import numpy
  from .mh import MHMove
label_desc: Use image node_id 1 for calling the _proposal obj's underlying member method code with example usage: obj.get_updated_vector(rng, x0) and returns: unknown