code: def ensure_tensor(inputs, dtype=None):
      """Ensures the input is a Tensor, SparseTensor or RaggedTensor."""
      if not isinstance(
          inputs, (tf.Tensor, tf.SparseTensor, tf.RaggedTensor)
      ):
          inputs = tf.convert_to_tensor(inputs, dtype)
      if dtype is not None and inputs.dtype != dtype:
          inputs = tf.cast(inputs, dtype)
      return inputs
  
imports: from keras.utils.module_utils import tensorflow
label_desc: Use image node_id 6 for calling a global function with example usage: ensure_tensor(inputs, dtype) and returns: inputs