tf.raw_ops.RaggedFillEmptyRows 

tf.raw_ops.RaggedFillEmptyRows(
    value_rowids, values, nrows, default_value, name=None
)

value_rowids A Tensor of type int64.
values A Tensor.
nrows A Tensor of type int64.
default_value A Tensor. Must have the same type as values.
name A name for the operation (optional).

A tuple of Tensor objects (output_value_rowids, output_values, empty_row_indicator, reverse_index_map).
output_value_rowids A Tensor of type int64.
output_values A Tensor. Has the same type as values.
empty_row_indicator A Tensor of type bool.
reverse_index_map A Tensor of type int64.