| 1 | /**
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| 2 | * Copyright (C) 2016-2020 Michael Kourlas
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | export declare function isUndefined(val: unknown): val is undefined;
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| 17 | export declare function isNull(val: unknown): val is null;
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| 18 | export declare function isObject(val: unknown): val is Record<string, unknown>;
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| 19 | export declare function isArray(val: unknown): val is unknown[];
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| 20 | export declare function isFunction(val: unknown): val is Function;
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| 21 | export declare function isSet(val: unknown): val is Set<unknown>;
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| 22 | export declare function isMap(val: unknown): val is Map<unknown, unknown>;
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| 23 | /**
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| 24 | * Returns a string representation of the specified value, as given by the
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| 25 | * value's toString() method (if it has one) or the global String() function
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| 26 | * (if it does not).
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| 27 | *
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| 28 | * @param value The value to convert to a string.
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| 29 | *
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| 30 | * @returns A string representation of the specified value.
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| 31 | */
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| 32 | export declare function stringify(value: any): string;
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