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# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License 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.

from __future__ import absolute_import
import json
import yaml

__all__ = [
    'from_json_string',
    'from_yaml_string',
    'to_json_string',
    'to_yaml_string',
]


def from_json_string(value):
    return json.loads(value)


def from_yaml_string(value):
    return yaml.safe_load(value)


def to_json_string(value, indent=4, sort_keys=False, separators=(',', ':')):
    return json.dumps(value, indent=indent, separators=separators,
                      sort_keys=sort_keys)


def to_yaml_string(value, indent=4, allow_unicode=True):
    return yaml.safe_dump(value, indent=indent, allow_unicode=allow_unicode,
                          default_flow_style=False)

@@ -812,16 +812,17 @@
 _import%0A
+%0A
 import j
@@ -836,16 +836,27 @@
 ort yaml
+%0Aimport six
 %0A%0A__all_
@@ -1008,22 +1008,37 @@
 n.loads(
+six.text_type(
 value)
+)
 %0A%0A%0Adef f
@@ -1087,22 +1087,37 @@
 fe_load(
+six.text_type(
 value)
+)
 %0A%0A%0Adef t

Make sure we cast input values to from_json_string and from_yaml_string to text type (unicode, string) so it also works for KeyValueLookup objects.