Each Machine is entitled to have Metadata, which can be set at the Machine.metadata
level inside the config, but will result in a standardized output of metadata
under user_defined and build_metadata. Where user_defined can go
arbitrarily deep, depending on the amount of metadata the user wishes to enter.
build_metadata is more predictable. During the course of building a Machine
the system will insert certain metadata given about the build time, and model
metrics (depending on configuration).
.. automodule:: gordo.machine.metadata.metadata
:members:
:undoc-members:
:show-inheritance: