func DontNeed() Option {
	return optionFunc(func(c *config) error {
		c.dontNeed = true
		return nil
	})
}
// DontNeed signals to the OS that the target file should not remain in the block cache.
// This is useful in case the file will not be accessed/read in the near future.
DontNeed signals to the OS that the target file should not remain in the block cache.
This is useful in case the file will not be accessed/read in the near future.
// DontNeed signals to the OS that the target file should not remain in the block cache . // This is useful in case the file will not be accessed / read in the near future .
func DontNeed() Option {
	return optionFunc(func(c *config) error {
		c.dontNeed = true
		return nil
	})
}
func DontNeed ( ) Option { return optionFunc ( func ( c * config ) error { c . dontNeed = true return nil } ) }
DontNeed signals to the OS that the target file should not remain in the block cache.
DontNeed signals to the OS that the target file should not remain in the block cache .