Parse parses a slice of strings as a list of arguments (e.g.

PrepareTemplates takes a [Config] and a [scan.FileSystem], and uses the first one to initialize the [Template] instances that compound the scan defined by that configuration, and stores them into the given file system, so it is ready for the scan to start.

ErrInvalidHeader is the error returned when [Config] contains some headers configured by they have an invalid format.

ErrProcessRequestFile is the error returned when [Config] points to a file with requests, and it could not be processed successfully.

ErrProcessUrlsFile is the error returned when [Config] points to a file with urls, and it could not be processed successfully.

Config is the set of the different command-line configuration options.

Verbosity is a structure used to capture the corresponding [logger.Level] from configuration (command-line) options, including whether it's [logger.LevelDebug], [logger.LevelInfo], [logger.LevelWarn] or disabled.

MultiValue defines a stringified command-line argument that can contain multiple values.