Add error formatter and docs

other/other.go

@@ -1,5 +1,7 @@
 package other
 
+import "fmt"
+
 // OutputIntoChannel takes a singular return value and sends it into the target channel.
 // This is a wrapper for functions where a value can't be collected from directly.
 // Example: goroutines
@@ -7,6 +9,10 @@ func OutputIntoChannel[T any](out T, target chan T) {
 	target <- out
 }
 
+// Must is a quick wrapper to ensure that a function exits without error.
+// If err is not nil, it panics. Otherwise val is returned.
+// The intended use is something like Must(someFunc()), where someFunc
+// has the signature someFunc() (T, error), with T being whatever type needed
 func Must[T any](val T, err error) T {
 	if err != nil {
 		panic(err)
@@ -14,6 +20,13 @@ func Must[T any](val T, err error) T {
 	return val
 }
 
+// IntoPointer returns a pointer to the given value
 func IntoPointer[T any](val T) *T {
 	return &val
 }
+
+// Error formats error messages to follow a common convention of
+// "source: message: wrapped error"
+func Error(source, message string, err error) error {
+	return fmt.Errorf("%s: %s: %w", source, message, err)
+}