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Data exchange format for "Neural Network Library".
Current version of .nnp file is just a ZIP format archive file but filename extension is '.nnp'.
'.nnp' file will contain following files. If '.nnp' file contain other file, nnabla will just ignore that files.
* Specify version of nnp file. Version string in this file is got from nnp_version().
* '*.nntxt' (or '*.prototxt')
* Network structure in Protocol buffer text format.
* Trained parameter in Protocol buffer binary format.
* Trained parameter in HDF5 format.(Will be obsolete soon.)
Current version is "0.1"
* Version history
* Version 0.1
* First version.