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+<!-- This file is machine generated: DO NOT EDIT! -->
+
+# Data IO (Python functions)
+<!-- TOC-BEGIN This section is generated by neural network: DO NOT EDIT! -->
+## Contents
+* [Data IO (Python Functions)](#AUTOGENERATED-data-io--python-functions-)
+  * [class tf.python_io.TFRecordWriter](#TFRecordWriter)
+  * [tf.python_io.tf_record_iterator(path)](#tf_record_iterator)
+  * [TFRecords Format Details](#AUTOGENERATED-tfrecords-format-details)
+
+
+<!-- TOC-END This section was generated by neural network, THANKS FOR READING! -->
+
+## Data IO (Python Functions) <div class="md-anchor" id="AUTOGENERATED-data-io--python-functions-">{#AUTOGENERATED-data-io--python-functions-}</div>
+
+A TFRecords file represents a sequence of (binary) strings.  The format is not
+random access, so it is suitable for streaming large amounts of data but not
+suitable if fast sharding or other non-sequential access is desired.
+
+- - -
+
+### class tf.python_io.TFRecordWriter <div class="md-anchor" id="TFRecordWriter">{#TFRecordWriter}</div>
+
+A class to write records to a TFRecords file.
+
+This class implements `__enter__` and `__exit__`, and can be used
+in `with` blocks like a normal file.
+
+- - -
+
+#### tf.python_io.TFRecordWriter.__init__(path) {#TFRecordWriter.__init__}
+
+Opens file `path` and creates a `TFRecordWriter` writing to it.
+
+##### Args:
+
+
+*  <b>path</b>: The path to the TFRecords file.
+
+##### Raises:
+
+
+*  <b>IOError</b>: If `path` cannot be opened for writing.
+
+
+- - -
+
+#### tf.python_io.TFRecordWriter.write(record) {#TFRecordWriter.write}
+
+Write a string record to the file.
+
+##### Args:
+
+
+*  <b>record</b>: str
+
+
+- - -
+
+#### tf.python_io.TFRecordWriter.close() {#TFRecordWriter.close}
+
+Close the file.
+
+
+
+- - -
+
+### tf.python_io.tf_record_iterator(path) <div class="md-anchor" id="tf_record_iterator">{#tf_record_iterator}</div>
+
+An iterator that read the records from a TFRecords file.
+
+##### Args:
+
+
+*  <b>path</b>: The path to the TFRecords file.
+
+##### Yields:
+
+  Strings.
+
+##### Raises:
+
+
+*  <b>IOError</b>: If `path` cannot be opened for reading.
+
+
+
+- - -
+
+### TFRecords Format Details <div class="md-anchor" id="AUTOGENERATED-tfrecords-format-details">{#AUTOGENERATED-tfrecords-format-details}</div>
+
+A TFRecords file contains a sequence of strings with CRC hashes.  Each record
+has the format
+
+    uint64 length
+    uint32 masked_crc32_of_length
+    byte   data[length]
+    uint32 masked_crc32_of_data
+
+and the records are concatenated together to produce the file.  The CRC32s
+are [described here](https://en.wikipedia.org/wiki/Cyclic_redundancy_check),
+and the mask of a CRC is
+
+    masked_crc = ((crc >> 15) | (crc << 17)) + 0xa282ead8ul