initWithBytesN
"initWithBytesN" is an initializer method commonly found in Objective-C and Swift for creating data objects from raw byte data. It is typically used to create instances of classes like `NSData` or `NSMutableData`. The method takes two primary arguments: a pointer to the memory location containing the byte data and the number of bytes to copy.
The purpose of "initWithBytesN" is to encapsulate a block of raw memory into a managed data object.
This method is essential when dealing with data that is not necessarily text-based, such as images, audio