code: def qr_helper1(a_rc, y_ri, t, W_c):
      return a_rc - np.dot(y_ri, np.dot(t.T, W_c))
  
file_path: ray/python/ray/experimental/array/distributed/linalg.py
imports: import numpy
  import ray
  import ray.experimental.array.remote
  from .None import core
label_desc: Use image node_id 6 for calling a global function with example usage: qr_helper1(a_rc, y_ri, t, W_c) and returns: unknown