function isStaticString(node) {
			return (
				isStringLiteral(node) ||
				astUtils.isStaticTemplateLiteral(node) ||
				isStringRawTaggedStaticTemplateLiteral(node)
			);
		}
Determines whether the given node is considered to be a static string by the logic of this rule.
@param {ASTNode} node Node to check.
@returns {boolean} True if the node is a static string.