# Representation of Datasets (`pydicom.dataset`)

Representation of DICOM datasets and related functions.

`Dataset`(*args, **kwargs) | Contains a collection (dictionary) of DICOM Data Elements.
`FileDataset`(filename_or_obj, dataset[, …]) | An extension of `Dataset` to make reading and writing to file-like easier.
`PrivateBlock`(key, dataset, …) | Helper class for a private block in the `Dataset`.
`validate_file_meta`(file_meta[, enforce_standard]) | Validate the File Meta Information elements in file_meta.