code: def istensor1d(x):
      return (x.ndim == 1) or (x.ndim == 2 and x.shape[1] == 1)
  
imports: import sys
  import numpy
  from cffi import FFI
  from neon import NervanaObject
  from neon.transforms import Rectlinclip
label_desc: Use image node_id 7 for calling a global function with example usage: istensor1d(x) and returns: unknown