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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read(self, file_path: str) -> Iterable[Instance]: """ Returns an ``Iterable`` containing all the instances in the specified dataset. If ``self.lazy`` is False, this calls ``self._read()``, ensures that the result is a list, then returns the resulting list. If ``self.lazy`` is True, this returns an object whose ``__iter__`` method calls ``self._read()`` each iteration. In this case your implementation of ``_read()`` must also be lazy (that is, not load all instances into memory at once), otherwise you will get a ``ConfigurationError``. In either case, the returned ``Iterable`` can be iterated over multiple times. It's unlikely you want to override this function, but if you do your result should likewise be repeatedly iterable. """

        lazy = getattr(self, 'lazy', None)

        if lazy is None:
            logger.warning("DatasetReader.lazy is not set, "
                           "did you forget to call the superclass constructor?")

        if self._cache_directory:
            cache_file = self._get_cache_location_for_file_path(file_path)
        else:
            cache_file = None

        if lazy:
            return _LazyInstances(lambda: self._read(file_path),
                                  cache_file,
                                  self.deserialize_instance,
                                  self.serialize_instance)
        else:
            # First we read the instances, either from a cache or from the original file.
            if cache_file and os.path.exists(cache_file):
                instances = self._instances_from_cache_file(cache_file)
            else:
                instances = self._read(file_path)

            # Then some validation.
            if not isinstance(instances, list):
                instances = [instance for instance in Tqdm.tqdm(instances)]
            if not instances:
                raise ConfigurationError("No instances were read from the given filepath {}. "
                                         "Is the path correct?".format(file_path))

            # And finally we write to the cache if we need to.
            if cache_file and not os.path.exists(cache_file):
                logger.info(f"Caching instances to {cache_file}")
                with open(cache_file, 'w') as cache:
                    for instance in Tqdm.tqdm(instances):
                        cache.write(self.serialize_instance(instance) + '\n')
            return instances