tf.summary.write

Writes a generic summary to the default SummaryWriter if one exists.

tf.summary.write(
    tag, tensor, step=None, metadata=None, name=None
)

This exists primarily to support the definition of type-specific summary ops like scalar() and image(), and is not intended for direct use unless defining a new type-specific summary op.

Args
tag	string tag used to identify the summary (e.g. in TensorBoard), usually generated with tf.summary.summary_scope
tensor	the Tensor holding the summary data to write or a callable that returns this Tensor. If a callable is passed, it will only be called when a default SummaryWriter exists and the recording condition specified by record_if() is met.
step	Explicit int64-castable monotonic step value for this summary. If omitted, this defaults to tf.summary.experimental.get_step(), which must not be None.
metadata	Optional SummaryMetadata, as a proto or serialized bytes
name	Optional string name for this op.

Returns
True on success, or false if no summary was written because no default summary writer was available.

Raises
ValueError	if a default writer exists, but no step was provided and tf.summary.experimental.get_step() is None.