tw_check_cache          Check caching status in the current session,
                        and override it upon request
tw_check_cache_folder   Checks if cache folder exists, if not returns
                        an informative message
tw_check_cache_index    Check if cache table is indexed
tw_check_cached_items   Check if given items are present in cache
tw_check_pid            Ensures that input appears to be a valid
                        Wikidata property id (i.e. it starts with P and
                        is followed only by digits)
tw_check_qid            Ensures that input appears to be a valid
                        Wikidata id
tw_check_search         Checks if an input is a search; if not, it
                        tries to return a search
tw_connect_to_cache     Return a connection to be used for caching
tw_create_cache_folder
                        Creates the base cache folder where
                        'tidywikidatar' caches data.
tw_disable_cache        Disable caching for the current session
tw_disconnect_from_cache
                        Ensure that connection to cache is disconnected
                        consistently
tw_empty_image_metadata
                        A zero-rows tibble used internally when
                        'tw_get_image_metadata()' would not return any
                        value.
tw_empty_item           A zero-rows tibble used internally when
                        'tw_get()' would not return any value.
tw_empty_qualifiers     A zero-rows tibble used internally when
                        'tw_get_qualifiers()' would not return any
                        value.
tw_empty_search         A zero-rows tibble used internally when
                        'tw_search()' would not return any value.
tw_empty_wikipedia_category_members
                        A zero-rows tibble used internally when
                        'tw_empty_wikipedia_category_members()' would
                        not return any value.
tw_empty_wikipedia_page
                        A zero-rows tibble used internally when
                        'tw_get_wikipedia_page_qid()' would not return
                        any value.
tw_empty_wikipedia_page_links
                        A zero-rows tibble used internally when
                        'tw_get_wikipedia_page_links()' would not
                        return any value.
tw_empty_wikipedia_page_sections
                        A zero-rows tibble used internally when
                        'tw_get_wikipedia_page_sections()' would not
                        return any value.
tw_enable_cache         Enable caching for the current session
tw_extract_qualifier    Extract qualifiers from a list created with
                        'tw_get_item()'
tw_extract_single       Extract item data from a list object retrieved
                        from the Wikidata API
tw_filter               Filter search result and keep only items with
                        matching property and Q identifier
tw_filter_first         Filter search result and keep only and keep
                        only the first match
tw_filter_people        Filter search result and keep only people
tw_get                  Return (most) information from a Wikidata item
                        in a tidy format
tw_get_all_with_p       Get all items that have a given property
                        (irrespective of the value)
tw_get_cache_db         Get database connection settings from the
                        environment
tw_get_cache_file       Gets location of cache file
tw_get_cache_table_name
                        Gets name of table inside the database
tw_get_cached_item      Retrieve cached item
tw_get_cached_qualifiers
                        Retrieve cached qualifier
tw_get_cached_search    Retrieve cached search
tw_get_cached_wikipedia_category_members
                        Gets members of Wikipedia categories from local
                        cache
tw_get_cached_wikipedia_page_links
                        Gets links of Wikipedia pages from local cache
tw_get_cached_wikipedia_page_qid
                        Gets id of Wikipedia pages from local cache
tw_get_cached_wikipedia_page_sections
                        Gets sections of Wikipedia pages from local
                        cache
tw_get_description      Get Wikidata description in given language
tw_get_field            Gets a field such a label or description from a
                        data frame typically generated with 'tw_get()'
tw_get_image            Get image from Wikimedia Commons
tw_get_image_metadata   Get metadata for images from Wikimedia Commons
tw_get_image_metadata_single
                        Get metadata for images from Wikimedia Commons
tw_get_image_same_length
                        Get image from Wikimedia Commons
tw_get_item             Retrieve item from the Wikidata API and returns
                        it as a list
tw_get_label            Get Wikidata label in given language
tw_get_p1               Get Wikidata property of an item as a character
                        vector of the same length as input
tw_get_p_wide           Efficiently get a wide table with various
                        properties of a given set of Wikidata
                        identifiers
tw_get_property         Get Wikidata property of one or more items as a
                        tidy data frame
tw_get_property_description
                        Get description of a Wikidata property in a
                        given language
tw_get_property_description_single
                        Get description of a Wikidata property in a
                        given language
tw_get_property_label   Get label of a Wikidata property in a given
                        language
tw_get_property_label_single
                        Get label of a Wikidata property in a given
                        language
tw_get_property_same_length
                        Get Wikidata property of an item as a vector or
                        list of the same length as input
tw_get_property_with_details
                        Gets all details of a property for one or more
                        Wikidata items.
tw_get_property_with_details_single
                        Gets all details of a property
tw_get_qualifiers       Get Wikidata qualifiers for a given property of
                        a given item
tw_get_qualifiers_single
                        Get Wikidata qualifiers for a given property of
                        a given item
tw_get_single           Return (most) information from a Wikidata item
                        in a tidy format from a single Wikidata
                        identifier
tw_get_wikipedia        Get URL to a Wikipedia article corresponding to
                        a Wikidata Q identifier in given language
tw_get_wikipedia_base_api_url
                        Facilitates the creation of MediaWiki API base
                        URLs
tw_get_wikipedia_category_members
                        Get all Wikidata Q identifiers of all Wikipedia
                        pages (or files, or subcategories) that are
                        members of the given category,
tw_get_wikipedia_category_members_single
                        Get all Wikidata Q identifiers of all Wikipedia
                        pages that appear in a given page
tw_get_wikipedia_page_links
                        Get all Wikidata Q identifiers of all Wikipedia
                        pages that appear in one or more pages
tw_get_wikipedia_page_links_single
                        Get all Wikidata Q identifiers of all Wikipedia
                        pages that appear in a given page
tw_get_wikipedia_page_qid
                        Gets the Wikidata Q identifier of one or more
                        Wikipedia pages
tw_get_wikipedia_page_qid_single
                        Gets the Wikidata id of a Wikipedia page
tw_get_wikipedia_page_section_links
                        Get links from a specific section of a
                        Wikipedia page
tw_get_wikipedia_page_sections
                        Get sections of a Wikipedia page
tw_get_wikipedia_page_sections_single
                        Get all Wikidata Q identifiers of all Wikipedia
                        pages that appear in a given page
tw_get_wikipedia_section_links_api_url
                        Facilitates the creation of MediaWiki API base
                        URLs to retrieve sections of a page
tw_get_wikipedia_sections_api_url
                        Facilitates the creation of MediaWiki API base
                        URLs to retrieve sections of a page
tw_index_cache_item     Add index to caching table for search queries
                        for increased speed
tw_index_cache_search   Add index to caching table for search queries
                        for increased speed
tw_label                Gets labels for all columns with names such as
                        "id" and "property".
tw_qid_airports         The Wikidata Q identifier of European airports
                        found in Eurostat's 'avia_par_' dataset
tw_qid_meps             The Wikidata Q identifier of all members of the
                        European Parliament since its establishment
tw_query                Perform simple Wikidata queries
tw_reset_item_cache     Reset item cache
tw_reset_qualifiers_cache
                        Reset qualifiers cache
tw_reset_wikipedia_category_members_cache
                        Reset Wikipedia category members cache
tw_reset_wikipedia_page_cache
                        Reset Wikipedia page cache
tw_reset_wikipedia_page_links_cache
                        Reset Wikipedia page link cache
tw_reset_wikipedia_page_sections_cache
                        Reset Wikipedia page link cache
tw_search               Search for Wikidata items or properties and
                        return Wikidata id, label, and description.
tw_search_item          Search for Wikidata properties in Wikidata and
                        return Wikidata id, label, and description.
tw_search_property      Search for Wikidata properties in Wikidata and
                        return Wikidata id, label, and description.
tw_search_single        Search for Wikidata items or properties and
                        return Wikidata id, label, and description.
tw_set_cache_db         Set database connection settings for the
                        session
tw_set_cache_folder     Set folder for caching data
tw_set_language         Set language to be used by all functions
tw_set_user_agent       Set language to be used by all functions
tw_test_items           A list mostly used for testing with some
                        Wikidata items in the format resulting from
                        'tw_get_item()'
tw_write_item_to_cache
                        Writes item to cache
tw_write_qid_of_wikipedia_page_to_cache
                        Write Wikidata identifier (qid) of Wikipedia
                        page to cache
tw_write_qualifiers_to_cache
                        Write qualifiers to cache
tw_write_search_to_cache
                        Writes search to cache
tw_write_wikipedia_category_members_to_cache
                        Write Wikipedia page links to cache
tw_write_wikipedia_page_links_to_cache
                        Write Wikipedia page links to cache
tw_write_wikipedia_page_sections_to_cache
                        Write Wikipedia page links to cache
