A well-documented collection of reliable resources, such as executable files, documentation, message templates, and written code, is referred to as a library in computer programming. The phrase can also be used to describe a group of pre-written modules that, when used together, carry out a given task or generate a particular result. Code, class definitions, procedures, scripts, and configuration data can all be used as library modules. Developers can use the modules in the library as needed without having to completely rewrite the code for each module, according to this. In other words, rather than developing new modules from scratch, they can reuse the functionality offered by other libraries. Libraries might be very specific for a particular use case (e.g., decoding sound file compression) or highly generic for non-specialized usage (e.g., telling the time, basic mathematical operations). Therefore, developers and computer scientists can benefit greatly from using code libraries. Some of these make it simpler for developers to create and implement software by making better use of time and resources. The so-called "Black Box Effect," wherein the developer can only observe the input and output of a code library's use and frequently has little to no comprehension of what occurs in between, is a drawback of using code libraries.