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function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
export default function assertString(input) {
var isString = typeof input === 'string' || input instanceof String;
if (!isString) {
var invalidType;
if (input === null) {
invalidType = 'null';
} else {
invalidType = _typeof(input);
if (invalidType === 'object' && input.constructor && input.constructor.hasOwnProperty('name')) {
invalidType = input.constructor.name;
} else {
invalidType = "a ".concat(invalidType);
}
}
throw new TypeError("Expected string but received ".concat(invalidType, "."));
}
}
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