code: def is_backend(backend_):
      return backend()["name"] == backend_.value
  
imports: import contextlib
  import enum
  import gin
  from trax.fastmath.jax import JAX_BACKEND
  from trax.fastmath.numpy import NUMPY_BACKEND
  from trax.fastmath.tf import TF_BACKEND
label_desc: Use image node_id 46 for calling a global function with example usage: is_backend(backend_) and returns: unknown