function isExportSpecifier(nodeType) {
			return (
				nodeType === "ExportNamedDeclaration" ||
				nodeType === "ExportSpecifier" ||
				nodeType === "ExportDefaultDeclaration" ||
				nodeType === "ExportAllDeclaration"
			);
		}
Determine if provided keyword is an export specifiers
@private
@param {string} nodeType nodeType to test
@returns {boolean} True if `nodeType` is an export specifier