Source code for gluonts.shell.sagemaker.nested_params
# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License").
# You may not use this file except in compliance with the License.
# A copy of the License is located at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# or in the "license" file accompanying this file. This file is distributed
# on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
# express or implied. See the License for the specific language governing
# permissions and limitations under the License.
import re
from collections import defaultdict
from toolz.dicttoolz import valmap
from gluonts.core import serde
[docs]def split_by_prefix(data: dict) -> dict:
rx = re.compile(r"\$(\w+)\.")
namespace: dict = defaultdict(dict)
def split_key(key):
key_parts = rx.split(key, 1)
if len(key_parts) == 1:
prefix = ""
suffix = key_parts[0]
else:
_, prefix, suffix = key_parts
return prefix, suffix
for key, value in data.items():
prefix, suffix = split_key(key)
namespace[prefix][suffix] = value
return dict(namespace)
[docs]def decode_nested_parameters(parameters: dict) -> dict:
inputs = split_by_prefix(parameters)
return valmap(serde.flat.decode, inputs)