code: def _is_printable(obj):
      """Check if the object is a valid text type."""
      return isinstance(obj, _six.string_types)
  
imports: from ..._deps import _HAS_SKLEARN
  from ...models import MLModel
  import coremltools
  from coremltools.proto import FeatureTypes_pb2
  import numpy
  import scipy
  import six
label_desc: Use image node_id 14 for calling a global function with example usage: _is_printable(obj) and returns: isinstance