Creates an arrow function (lambda)
Aliases:
Func<parameters, returnType> myFunction = (parameters) => { // Your code here};
Type myFunction(parameters) => expression;
(parameters) -> returnType { // Your code here}
const myFunction = (parameters) => { // Your code here};
my_function = ->() { # Your code here}
myFunction = fn(parameters) => // Your code here;
{parameters -> # Your code here}
my_function = lambda parameters: // Your code here
# Bash doesn't have arrow functions.
const myFunction = (parameters): void => { // Your code here};