import json
import logging
from pathlib import Path
from typing import Union, Dict, Any
from .utils import ContextStack
_logger = logging.getLogger(__name__)
[docs]def fixed_arch(fixed_arch: Union[str, Path, Dict[str, Any]], verbose=True):
"""
Load architecture from ``fixed_arch`` and apply to model. This should be used as a context manager. For example,
.. code-block:: python
with fixed_arch('/path/to/export.json'):
model = Model(3, 224, 224)
Parameters
----------
fixed_arc : str, Path or dict
Path to the JSON that stores the architecture, or dict that stores the exported architecture.
verbose : bool
Print log messages if set to True
Returns
-------
ContextStack
Context manager that provides a fixed architecture when creates the model.
"""
if isinstance(fixed_arch, (str, Path)):
with open(fixed_arch) as f:
fixed_arch = json.load(f)
if verbose:
_logger.info(f'Fixed architecture: %s', fixed_arch)
return ContextStack('fixed', fixed_arch)