code: def lstsq(a, b, rcond=None):
      return np.linalg.lstsq(a, b, rcond=rcond, numpy_resid=True)
  
file_path: tensorly/tensorly/backend/jax_backend.py
imports: from packaging.version import Version
  import numpy
  from .core import Backend, backend_types, backend_basic_math, backend_array
label_desc: Use image node_id 7 for calling the JaxBackend obj's underlying member method code with example usage: obj.lstsq(a, b, rcond) and returns: np