lens in tuple python

lens-4.18.1: Lenses, Folds and Traversals, class Field1 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. The length of the tuple can also be found using the for loop whose method is given here. May 17, 2019 in Python. The print function contains in the above example is outside of the for loop. So, let’s start learning each section one by one with the examples given here. _8 :: (Generic s, Generic t, GIxed N7 (Rep s) (Rep t) a b) => Lens s t a b Source #, _8 :: Lens (a, b, c, d, e, f, g, h) (a, b, c, d, e, f, g, h') h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i) (a, b, c, d, e, f, g, h', i) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j) (a, b, c, d, e, f, g, h', i, j) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a, b, c, d, e, f, g, h', i, j, kk) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b, c, d, e, f, g, h', i, j, kk, l) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c, d, e, f, g, h', i, j, kk, l, m) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n, o) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n, o, p) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n, o, p, q) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n, o, p, q, r) h h' Source #, _8 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h', i, j, kk, l, m, n, o, p, q, r, s) h h' Source #, class Field9 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Tutorialdeep » knowhow » Python Faqs » Find Length of Tuple or Get Items Size Using Python. Provides access to the 15th field of a tuple. Length of is 0 Length of Python is 6 Length of b'Python' is 6 Length of b'\x01\x02\x03' is 3. Thatâs why we brought these 30 Python programming questions on List, Tuple, and Dictionary in this blog post.. Also, with the help of these constructs, you can create robust and scalable Python â¦ Following is the syntax for len() method â len(tuple) Parameters. In this tutorial you will learn, how to create tuples and access the values from them. Tupleâ¦ A Computer Science portal for geeks. 1)Sorted, Lens , Max 2)Reverse , Max 3)Append #python. _12 :: (Generic s, Generic t, GIxed N11 (Rep s) (Rep t) a b) => Lens s t a b Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b, c, d, e, f, g, h, i, j, kk, l') l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c, d, e, f, g, h, i, j, kk, l', m) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n, o) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n, o, p) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n, o, p, q) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n, o, p, q, r) l l' Source #, _12 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h, i, j, kk, l', m, n, o, p, q, r, s) l l' Source #, class Field13 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Provides access to the 19th field of a tuple. 2 Answers. py_tuple = (1,2,'a','b','Hello') _5 :: (Generic s, Generic t, GIxed N4 (Rep s) (Rep t) a b) => Lens s t a b Source #, _5 :: Lens (a, b, c, d, e) (a, b, c, d, e') e e' Source #, _5 :: Lens (a, b, c, d, e, f) (a, b, c, d, e', f) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g) (a, b, c, d, e', f, g) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h) (a, b, c, d, e', f, g, h) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i) (a, b, c, d, e', f, g, h, i) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j) (a, b, c, d, e', f, g, h, i, j) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a, b, c, d, e', f, g, h, i, j, kk) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b, c, d, e', f, g, h, i, j, kk, l) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c, d, e', f, g, h, i, j, kk, l, m) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n, o) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n, o, p) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n, o, p, q) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n, o, p, q, r) e e' Source #, _5 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e', f, g, h, i, j, kk, l, m, n, o, p, q, r, s) e e' Source #, class Field6 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Just like Python list, tuples are also the sequence of comma-separated values enclosed in parentheses instead of square brackets.The parentheses are optional though. A tuple is a sequence, but its values cannot be altered. I hope, you like this post on how to get the size of the tuple variable using Python. In Python, the most important data structures are List, Tuple, and Dictionary. So you should know how they work and when to use them. The function takes a single argument which is the tuple variable. Provides access to the 3rd field of a tuple. Provides access to the 14th field of a tuple. Youâll learn the important characteristics of lists and tuples, how to define each of the types.. 00:14 Youâll learn manipulation techniques. Python provides another type that is an ordered collection of objects, called a tuple. To create a tuple, all you need to do is define a set of comma-separated values between the parenthesis. Python tuple. You can create a tuple by placing a sequence of desired elements separated using commas inside a pair of round brackets (), i.e., parentheses. Also tell me, which method you are using to find the size of the tuple variable. To define a tuple, we just have to assign a single variable with multiple values separated by commas, and that variable will be known as a Tuple. Go to the editor. 1 â¦ Youâll also learn the fundamentals of â¦ This can also be used on larger tuples as well: _1 :: (Generic s, Generic t, GIxed N0 (Rep s) (Rep t) a b) => Lens s t a b Source #, _1 :: Lens (Identity a) (Identity b) a b Source #, _1 :: Lens (a, b, c) (a', b, c) a a' Source #, _1 :: Lens (a, b, c, d) (a', b, c, d) a a' Source #, _1 :: Lens ((f :*: g) p) ((f' :*: g) p) (f p) (f' p) Source #, _1 :: Lens (Product f g a) (Product f' g a) (f a) (f' a) Source #, _1 :: Lens (a, b, c, d, e) (a', b, c, d, e) a a' Source #, _1 :: Lens (a, b, c, d, e, f) (a', b, c, d, e, f) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g) (a', b, c, d, e, f, g) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h) (a', b, c, d, e, f, g, h) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i) (a', b, c, d, e, f, g, h, i) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j) (a', b, c, d, e, f, g, h, i, j) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a', b, c, d, e, f, g, h, i, j, kk) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a', b, c, d, e, f, g, h, i, j, kk, l) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a', b, c, d, e, f, g, h, i, j, kk, l, m) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n, o) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) a a' Source #, _1 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a', b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) a a' Source #, class Field2 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Output: Traceback (most recent call last): File "/home/eaf759787ade3942e8b9b436d6c60ab3.py", line 5, in tuple1=tuple(1) TypeError: 'int' object is not iterable Write a Python program to create a tuple with different data types. Any object can be tested for truth value, for use in an if or while condition or as operand of the Boolean operations below.. By default, an object is considered true unless its class defines either a __bool__() method that returns False or a __len__() method that returns zero, when called with the object. # Finding length of a tuple example in python my_tuple = ("zero", "one", "two", "three", "four"); length_of_tuple = len(my_tuple); print("Length of the tuple, my_tuple is:",length_of_tuple); Here is the sample output produced by the above example code of finding length of a tuple. _14 :: (Generic s, Generic t, GIxed N13 (Rep s) (Rep t) a b) => Lens s t a b Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n') n n' Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n', o) n n' Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n', o, p) n n' Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n', o, p, q) n n' Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n', o, p, q, r) n n' Source #, _14 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n', o, p, q, r, s) n n' Source #, class Field15 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. tuple â This is a tuple for â¦ Python - Tuples. Syntax. _13 :: (Generic s, Generic t, GIxed N12 (Rep s) (Rep t) a b) => Lens s t a b Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c, d, e, f, g, h, i, j, kk, l, m') m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n) m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n, o) m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n, o, p) m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n, o, p, q) m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n, o, p, q, r) m m' Source #, _13 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h, i, j, kk, l, m', n, o, p, q, r, s) m m' Source #, class Field14 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Tuples are defined by enclosing elements in parentheses (), separated by a comma. Here is an example of a tuple in Python. It is an ordered sequence of zero or more object references. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage.. A tuple is a collection which is ordered and unchangeable.. Tuples are written with round brackets. _11 :: (Generic s, Generic t, GIxed N10 (Rep s) (Rep t) a b) => Lens s t a b Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a, b, c, d, e, f, g, h, i, j, kk') kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b, c, d, e, f, g, h, i, j, kk', l) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c, d, e, f, g, h, i, j, kk', l, m) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n, o) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n, o, p) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n, o, p, q) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n, o, p, q, r) kk kk' Source #, _11 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h, i, j, kk', l, m, n, o, p, q, r, s) kk kk' Source #, class Field12 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. _17 :: (Generic s, Generic t, GIxed N16 (Rep s) (Rep t) a b) => Lens s t a b Source #, _17 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q') q q' Source #, _17 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q', r) q q' Source #, _17 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q', r, s) q q' Source #, class Field18 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. Nothing. A tuple is created by placing all the items (elements) inside parentheses (), separated by commas. Provides access to the 18th field of a tuple. Minimal complete definition. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Using function tuple() is also a built-in standard to be used to create a tuple in Python. filter_none. _3 :: (Generic s, Generic t, GIxed N2 (Rep s) (Rep t) a b) => Lens s t a b Source #, _3 :: Lens (a, b, c) (a, b, c') c c' Source #, _3 :: Lens (a, b, c, d) (a, b, c', d) c c' Source #, _3 :: Lens (a, b, c, d, e) (a, b, c', d, e) c c' Source #, _3 :: Lens (a, b, c, d, e, f) (a, b, c', d, e, f) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g) (a, b, c', d, e, f, g) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h) (a, b, c', d, e, f, g, h) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i) (a, b, c', d, e, f, g, h, i) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j) (a, b, c', d, e, f, g, h, i, j) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a, b, c', d, e, f, g, h, i, j, kk) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b, c', d, e, f, g, h, i, j, kk, l) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b, c', d, e, f, g, h, i, j, kk, l, m) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n, o) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n, o, p) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n, o, p, q) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) c c' Source #, _3 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b, c', d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) c c' Source #, class Field4 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #. This embedding lets you create hierarchies with tuples. The len() function contains the tuple variable as the argument. Provide access to the 7th field of a tuple. The length of the tuple can also be found using the for loop whose method is given here. link brightness_4 code # An empty tuple . # Initialize a tuple z = (3, 7, 4, 2) # Access the first item of a tuple at index 0 print(z[0]) Output of accessing the item at index 0. Tuples are very similar to lists. 2. _2 :: (Generic s, Generic t, GIxed N1 (Rep s) (Rep t) a b) => Lens s t a b Source #, _2 :: Lens (a, b, c) (a, b', c) b b' Source #, _2 :: Lens (a, b, c, d) (a, b', c, d) b b' Source #, _2 :: Lens ((f :*: g) p) ((f :*: g') p) (g p) (g' p) Source #, _2 :: Lens (Product f g a) (Product f g' a) (g a) (g' a) Source #, _2 :: Lens (a, b, c, d, e) (a, b', c, d, e) b b' Source #, _2 :: Lens (a, b, c, d, e, f) (a, b', c, d, e, f) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g) (a, b', c, d, e, f, g) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h) (a, b', c, d, e, f, g, h) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i) (a, b', c, d, e, f, g, h, i) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j) (a, b', c, d, e, f, g, h, i, j) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk) (a, b', c, d, e, f, g, h, i, j, kk) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l) (a, b', c, d, e, f, g, h, i, j, kk, l) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m) (a, b', c, d, e, f, g, h, i, j, kk, l, m) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n, o) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n, o, p) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r) b b' Source #, _2 :: Lens (a, b, c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) (a, b', c, d, e, f, g, h, i, j, kk, l, m, n, o, p, q, r, s) b b' Source #, class Field3 s t a b | s -> a, t -> b, s b -> t, t a -> s where Source #.