nl_tokens: Checks if value is classified as a Function object .
pl_tokens: function isFunction$3 ( value ) { if ( ! isObject$3 ( value ) ) { return false ; } // The use of `Object#toString` avoids issues with the `typeof` operator // in Safari 9 which returns 'object' for typed arrays and other constructors. var tag = baseGetTag ( <mask> ) ; return tag == funcTag$3 || tag == genTag$3 || tag == asyncTag || tag == proxyTag ; }