code: def _check_rnn_cell_input_dtypes(inputs):
      for t in nest.flatten(inputs):
          _check_supported_dtypes(t.dtype)
  
imports: import numpy
  import tensorflow
  from keras.layers.legacy_rnn.rnn_cell_impl import LayerRNNCell
  from tensorflow.python.eager import context
  from tensorflow.python.keras import activations
  from tensorflow.python.keras import initializers
  from tensorflow.python.keras.utils import tf_utils
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.ops import init_ops
  from tensorflow.python.framework import dtypes
  from tensorflow.python.util import nest
label_desc: Use image node_id 1 for calling a global function with example usage: _check_rnn_cell_input_dtypes(inputs) without return types