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home/ags/node_modules/is-string/index.js

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+'use strict';
+
+var strValue = String.prototype.valueOf;
+var tryStringObject = function tryStringObject(value) {
+	try {
+		strValue.call(value);
+		return true;
+	} catch (e) {
+		return false;
+	}
+};
+var toStr = Object.prototype.toString;
+var strClass = '[object String]';
+var hasToStringTag = require('has-tostringtag/shams')();
+
+module.exports = function isString(value) {
+	if (typeof value === 'string') {
+		return true;
+	}
+	if (typeof value !== 'object') {
+		return false;
+	}
+	return hasToStringTag ? tryStringObject(value) : toStr.call(value) === strClass;
+};