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## map
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### Instructions
Write a function `Map` that, for an `int` slice, applies a function of this type `func(int) bool` on each elements of that slice and returns a slice of all the return values.
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### Expected function
```go
func Map(f func(int) bool, a []int) []bool {
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}
```
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### Usage
Here is a possible program to test your function :
```go
package main
import (
"fmt"
"piscine"
)
func main() {
a := []int{1, 2, 3, 4, 5, 6}
result := piscine.Map(piscine.IsPrime, a)
fmt.Println(result)
}
```
And its output :
```console
$ go run .
[false true true false true false]
$
```
### Notions
- [Function literals](https://golang.org/ref/spec#Function_literals)
- [Function declaration](https://golang.org/ref/spec#Function_declarations)
- [Function types](https://golang.org/ref/spec#Function_types)