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java
private void delayEnableMyself() { if (!autoDisable) { return; } setEnabled(false); postDelayed(new Runnable() { @Override public void run() { setEnabled(true); } }, disableDuration); }
java
@Override public DBInstance rebootDBInstance(RebootDBInstanceRequest request) { request = beforeClientExecution(request); return executeRebootDBInstance(request); }
python
def ToPhotlam(self, wave, flux, **kwargs): """Convert to ``photlam``. .. math:: \\textnormal{photlam} = 10^{-0.4 \\; \\textnormal{vegamag}} \\; f_{\\textnormal{Vega}} where :math:`f_{\\textnormal{Vega}}` is the flux of :ref:`pysynphot-vega-spec` resampled at given waveleng...
java
@SuppressWarnings("unchecked") @Override public void eSet(int featureID, Object newValue) { switch (featureID) { case AfplibPackage.GRLINE__XPOS: setXPOS((Integer)newValue); return; case AfplibPackage.GRLINE__YPOS: setYPOS((Integer)newValue); return; case AfplibPackage.GRLINE__RG: getRg...
java
public static void mult( DMatrix3x3 a , DMatrix3 b , DMatrix3 c) { c.a1 = a.a11*b.a1 + a.a12*b.a2 + a.a13*b.a3; c.a2 = a.a21*b.a1 + a.a22*b.a2 + a.a23*b.a3; c.a3 = a.a31*b.a1 + a.a32*b.a2 + a.a33*b.a3; }
java
public static List random(Number min, Number max, long lenMin, long lenMax) { long len = random(lenMin, lenMax).longValue(); if (len > 0) { List ret = new ArrayList(); for (int i = 0; i < len; i++) { ret.add(random(min, max)); } return ret; } return null; }
java
public String getPublicCertificateHash() throws CertificateEncodingException, NoSuchAlgorithmException { return Base64.encodeBase64String(AsymmetricKeyCredential .getHash(this.publicCertificate.getEncoded())); }
python
def iter_files(root, exts=None, recursive=False): """ Iterate over file paths within root filtered by specified extensions. :param compat.string_types root: Root folder to start collecting files :param iterable exts: Restrict results to given file extensions :param bool recursive: Wether to walk the...
java
public ExtensibleType<TldExtensionType<T>> getOrCreateExtensionElement() { List<Node> nodeList = childNode.get("extension-element"); if (nodeList != null && nodeList.size() > 0) { return new ExtensibleTypeImpl<TldExtensionType<T>>(this, "extension-element", childNode, nodeList.get(0)); ...
java
public LayoutInfo getLayoutInfo(Container parent) { synchronized (parent.getTreeLock()) { initializeColAndRowComponentLists(); Dimension size = parent.getSize(); Insets insets = parent.getInsets(); int totalWidth = size.width - insets.left - insets.right; ...
java
@Override public ModifyLaunchTemplateResult modifyLaunchTemplate(ModifyLaunchTemplateRequest request) { request = beforeClientExecution(request); return executeModifyLaunchTemplate(request); }
java
public JSONObject imageCensorUserDefined(byte[] imgData, HashMap<String, String> options) { AipRequest request = new AipRequest(); String base64Content = Base64Util.encode(imgData); request.addBody("image", base64Content); return imageCensorUserDefinedHelper(request, options); }
java
public XmlStringBuilder element(String name, CharSequence content) { return element(name, content.toString()); }
java
public ExchangeRate getExchangeRate(String baseCode, String termCode){ return getExchangeRate(Monetary.getCurrency(baseCode), Monetary.getCurrency(termCode)); }
java
public List<String> getMetaKeywords(TypeElement typeElement) { ArrayList<String> results = new ArrayList<>(); // Add field and method keywords only if -keywords option is used if (config.keywords) { results.addAll(getClassKeyword(typeElement)); results.addAll(getMemberKe...
python
def get_raw_import_values(self): # pragma: no cover, deprecation """ Get some properties of timeperiod (timeperiod is a bit different from classic item) TODO: never called anywhere, still useful? :return: a dictionnary of some properties :rtype: dict """ ...
python
def zero_state(self, batch_size): """ Initial state of the network """ return torch.zeros(batch_size, self.state_dim, dtype=torch.float32)
java
public static long address(final ByteBuffer buffer) { if (!buffer.isDirect()) { throw new IllegalArgumentException("buffer.isDirect() must be true"); } return UNSAFE.getLong(buffer, BYTE_BUFFER_ADDRESS_FIELD_OFFSET); }
python
def decode(self, encoding=None, errors='strict'): """Decode using the codec registered for encoding. encoding defaults to the default encoding. errors may be given to set a different error handling scheme. Default is 'strict' meaning that encoding errors raise a UnicodeDecodeError. Other possib...
java
public static AddressType guessDeviceAddressType(URL url) { if (url.getDeviceAddress() == null) { return AddressType.COMPOSITE; } return guessAddressType(url.getDeviceAddress()); }
python
def verify_refresh_request(request): """ Wrapper around JWTIdentityPolicy.verify_refresh which verify if the request to refresh the token is valid. If valid it returns the userid which can be used to create to create an updated identity with ``remember_identity``. Otherwise it raises an exceptio...
java
public static <T> Function<T, Boolean> forPredicate (final Predicate<T> predicate) { return new Function<T, Boolean>() { public Boolean apply (T arg) { return predicate.apply(arg); } }; }
python
def convert_time(time): """Convert a time string into 24-hour time.""" split_time = time.split() try: # Get rid of period in a.m./p.m. am_pm = split_time[1].replace('.', '') time_str = '{0} {1}'.format(split_time[0], am_pm) except IndexError: return time try: ...
java
boolean write(final int value) { if (blockLength > blockLengthLimit) { return false; } final int rleCurrentValue = this.rleCurrentValue; final int rleLength = this.rleLength; if (rleLength == 0) { this.rleCurrentValue = value; this.rleLength =...
python
def with_known_args(self, **kwargs): """Send only known keyword-arguments to the phase when called.""" argspec = inspect.getargspec(self.func) stored = {} for key, arg in six.iteritems(kwargs): if key in argspec.args or argspec.keywords: stored[key] = arg if stored: return self.w...
python
def citation_count(papers, key='ayjid', verbose=False): """ Generates citation counts for all of the papers cited by papers. Parameters ---------- papers : list A list of :class:`.Paper` instances. key : str Property to use as node key. Default is 'ayjid' (recommended). verb...
python
def _rpt_unused_sections(self, prt): """Report unused sections.""" sections_unused = set(self.sections_seen).difference(self.section2goids.keys()) for sec in sections_unused: prt.write(" UNUSED SECTION: {SEC}\n".format(SEC=sec))
python
def create_element(self, ns, name): """ Create an element as a child of this SLDNode. @type ns: string @param ns: The namespace of the new element. @type name: string @param name: The name of the new element. @rtype: L{SLDNode} @return: The wrapped ...
python
def clip(self, channels=True): """Limit the values of the array to the default [0,1] range. *channels* says which channels should be clipped.""" if not isinstance(channels, (tuple, list)): channels = [channels] * len(self.channels) for i in range(len(self.channels)): ...
python
def compute_xy( self, projection: Union[pyproj.Proj, crs.Projection, None] = None ): """Computes x and y columns from latitudes and longitudes. The source projection is WGS84 (EPSG 4326). The default destination projection is a Lambert Conformal Conical projection centered o...
java
@SuppressWarnings("PMD.SwitchStmtsShouldHaveDefault") public boolean isCompatible(@NonNull EventType eventType) { switch (eventType) { case CREATED: return (listener instanceof CacheEntryCreatedListener<?, ?>); case UPDATED: return (listener instanceof CacheEntryUpdatedListener<?, ?>);...
python
def get_tabix_cmd(config): """Retrieve tabix command, handling new bcftools tabix and older tabix. """ try: bcftools = config_utils.get_program("bcftools", config) # bcftools has terrible error codes and stderr output, swallow those. bcftools_tabix = subprocess.check_output("{bcftool...
java
@Override public void sync(List<Dml> dmls) { if (dmls == null || dmls.isEmpty()) { return; } try { rdbSyncService.sync(mappingConfigCache, dmls, envProperties); rdbMirrorDbSyncService.sync(dmls); } catch (Exception e) { throw new Runtim...
java
public Query insideBoundingBox(float latitudeP1, float longitudeP1, float latitudeP2, float longitudeP2) { if (insideBoundingBox == null) { insideBoundingBox = "insideBoundingBox=" + latitudeP1 + "," + longitudeP1 + "," + latitudeP2 + "," + longitudeP2; } else if (insideBoundingBox.length() > 18) { ...
python
def _add_initial_value(self, data_id, value, initial_dist=0.0, fringe=None, check_cutoff=None, no_call=None): """ Add initial values updating workflow, seen, and fringe. :param fringe: Heapq of closest available nodes. :type fringe: list[(float | i...
python
def setup_queue(self, queue_name): """Setup the queue on RabbitMQ by invoking the Queue.Declare RPC command. When it is complete, the on_queue_declareok method will be invoked by pika. :param str|unicode queue_name: The name of the queue to declare. """ _logger.debug('De...
python
def info(self, remote_path): """Gets information about resource on WebDAV. More information you can find by link http://webdav.org/specs/rfc4918.html#METHOD_PROPFIND :param remote_path: the path to remote resource. :return: a dictionary of information attributes and them values with fol...
python
def createReference(self, fromnode, tonode, edge_data=None): """ Create a reference from fromnode to tonode """ if fromnode is None: fromnode = self fromident, toident = self.getIdent(fromnode), self.getIdent(tonode) if fromident is None or toident is None: ...
python
def prep_hla(work_dir, sample, calls, hlas, normal_bam, tumor_bam): """Convert HLAs into ABSOLUTE format for use with LOHHLA. LOHHLA hard codes names to hla_a, hla_b, hla_c so need to move """ work_dir = utils.safe_makedir(os.path.join(work_dir, sample, "inputs")) hla_file = os.path.join(work_dir, ...
python
def eject_virtual_media(self, device='FLOPPY'): """Ejects the Virtual Media image if one is inserted.""" vm_status = self.get_vm_status(device=device) if vm_status['IMAGE_INSERTED'] == 'NO': return dic = {'DEVICE': device.upper()} self._execute_command( '...
java
public final void setValue(int dayOfWeek, int hour, int minute, int second) { data = set(dayOfWeek, hour, minute, second, new short[3], 0); }
java
@Override public int open(String path, FuseFileInfo fi) { final AlluxioURI uri = mPathResolverCache.getUnchecked(path); // (see {@code man 2 open} for the structure of the flags bitfield) // File creation flags are the last two bits of flags final int flags = fi.flags.get(); LOG.trace("open({}, 0x...
java
private void unlockCompletely(ReentrantLock lockToUnlock){ int counter = lockToUnlock.getHoldCount(); for(int i = 0; i<counter; i++){ lockToUnlock.unlock(); } }
python
def sql_program_name_func(command): """ Extract program name from `command`. >>> sql_program_name_func('ls') 'ls' >>> sql_program_name_func('git status') 'git' >>> sql_program_name_func('EMACS=emacs make') 'make' :type command: str """ args = command.split(' ') for pro...
python
def appendBitPadding(str, blocksize=AES_blocksize): '''Bit padding a.k.a. One and Zeroes Padding A single set ('1') bit is added to the message and then as many reset ('0') bits as required (possibly none) are added. Input: (str) str - String to be padded (int) blocksize - block size of the algorithm R...
java
public static PageRange parse(String pages) { ANTLRInputStream is = new ANTLRInputStream(pages); InternalPageLexer lexer = new InternalPageLexer(is); lexer.removeErrorListeners(); //do not output errors to console CommonTokenStream tokens = new CommonTokenStream(lexer); InternalPageParser parser = new Interna...
java
public SymbolType withName(String name) { return clone(marker, name, arrayCount, typeVariable, null, null); }
java
@Deprecated public String format(Locale locale, Duration duration, DurationFormat format) { return format(duration); }
python
def label(self): """str display-name for this element, '' when absent from cube response. This property handles numeric, datetime and text variables, but also subvar dimensions """ value = self._element_dict.get("value") type_name = type(value).__name__ if type_...
python
def preview(self, request): """ Return a occurrences in JSON format up until the configured limit. """ recurrence_rule = request.POST.get('recurrence_rule') limit = int(request.POST.get('limit', 10)) try: rruleset = rrule.rrulestr( recurrence_r...
python
def line(y, thickness, gaussian_width): """ Infinite-length line with a solid central region, then Gaussian fall-off at the edges. """ distance_from_line = abs(y) gaussian_y_coord = distance_from_line - thickness/2.0 sigmasq = gaussian_width*gaussian_width if sigmasq==0.0: falloff =...
python
def get_concrete_model(model): """ Get model defined in Meta. :param str or django.db.models.Model model: :return: model or None :rtype django.db.models.Model or None: :raise ValueError: model is not found or abstract """ if not(inspect.isclass(model) and issubclass(model, models.Model)): ...
python
def decode_tx_packet(packet: str) -> dict: """Break packet down into primitives, and do basic interpretation. >>> decode_packet('10;Kaku;ID=41;SWITCH=1;CMD=ON;') == { ... 'node': 'gateway', ... 'protocol': 'kaku', ... 'id': '000041', ... 'switch': '1', ... 'command': 'on...
java
public long getTime() throws NotAvailableException { synchronized (timeSync) { try { if (!isRunning()) { throw new InvalidStateException("Stopwatch was never started!"); } if (endTime == -1) { return System.curr...
python
def _seconds_as_string(seconds): """ Returns seconds as a human-friendly string, e.g. '1d 4h 47m 41s' """ TIME_UNITS = [('s', 60), ('m', 60), ('h', 24), ('d', None)] unit_strings = [] cur = max(int(seconds), 1) for suffix, size in TIME_UNITS: if size is not None: cur, res...
java
private void setupLoggerFromProperties(final Properties props) { final String driverLogLevel = PGProperty.LOGGER_LEVEL.get(props); if (driverLogLevel == null) { return; // Don't mess with Logger if not set } if ("OFF".equalsIgnoreCase(driverLogLevel)) { PARENT_LOGGER.setLevel(Level.OFF); ...
java
private void takeLeadership() { context.setLeader(context.getCluster().member().id()); context.getClusterState().getRemoteMemberStates().forEach(m -> m.resetState(context.getLog())); }
python
def on_unsubscribe(self): # type: () -> Callable """Decorate a callback funtion to handle unsubscribtions. **Usage:**:: @mqtt.unsubscribe() def handle_unsubscribe(client, userdata, mid) print('Unsubscribed from topic (id: {})' .form...
python
def auth_user_get_url(self): 'Build authorization URL for User Agent.' if not self.client_id: raise AuthenticationError('No client_id specified') return '{}?{}'.format(self.auth_url_user, urllib.urlencode(dict( client_id=self.client_id, state=self.auth_state_check, response_type='code', redirect_uri=self.au...
python
def make_timestamp_columns(): """Return two columns, created_at and updated_at, with appropriate defaults""" return ( Column('created_at', DateTime, default=func.utcnow(), nullable=False), Column('updated_at', DateTime, default=func.utcnow(), onupdate=func.utcnow(), nullable=False), )
java
public JBBPOut Byte(final String str) throws IOException { assertNotEnded(); assertStringNotNull(str); if (this.processCommands) { for (int i = 0; i < str.length(); i++) { this.outStream.write(str.charAt(i)); } } return this; }
python
def next(self): """ Provide iteration capabilities Use a small object cache for performance """ if not self._cache: self._cache = self._get_results() self._retrieved += len(self._cache) # If we don't have any other data to return, we just ...
python
def classmethod(self, encoding): """Function decorator for class methods.""" # Add encodings for hidden self and cmd arguments. encoding = ensure_bytes(encoding) typecodes = parse_type_encoding(encoding) typecodes.insert(1, b'@:') encoding = b''.join(typecodes) d...
java
private int[] determineAll_Buckets_Sarray(int q) { int strLen = length; int alphabetSize = alphabet.size; int numberBuckets = kbs_power_Ulong(alphabetSize, q); int[] buckets = new int[numberBuckets + 1]; for (int i = 0; i < q; i++) { seq[start + length + i] = alphabe...
java
@ObjectiveCName("toggleVideoEnabledWithCallId:") public void toggleVideoEnabled(long callId) { if (modules.getCallsModule().getCall(callId).getIsVideoEnabled().get()) { modules.getCallsModule().disableVideo(callId); } else { modules.getCallsModule().enableVideo(callId); ...
java
public synchronized static AminoAcid[] createAAs() { if (aminoAcids != null) { return aminoAcids; } // Create set of AtomContainers aminoAcids = new AminoAcid[20]; IChemFile list = new ChemFile(); CMLReader reader = new CMLReader(AminoAcids.class.getClassLoa...
java
public ResultList<MovieInfo> getTopRatedMovies(Integer page, String language) throws MovieDbException { return tmdbMovies.getTopRatedMovies(page, language); }
java
private boolean isMultiChunked(final String filename) { final FileCacheKey fileCacheKey = new FileCacheKey(indexName, filename, affinitySegmentId); final FileMetadata fileMetadata = metadataCache.get(fileCacheKey); if (fileMetadata==null) { //This might happen under high load when the metadat...
java
public static String mergeFromPath(String templatePath, Map<String, ?> values) { return mergeFromTemplate(readResource(templatePath), values); }
java
protected void sendAppendRequest(Connection connection, MemberState member, AppendRequest request) { long timestamp = System.nanoTime(); logger.trace("{} - Sending {} to {}", context.getCluster().member().address(), request, member.getMember().address()); connection.<AppendRequest, AppendResponse>sendAndRe...
java
public Status withCause(Throwable cause) { if (Objects.equal(this.cause, cause)) { return this; } return new Status(this.code, this.description, cause); }
python
def _set_fields(self, fields): """Set or update the fields value.""" super(_BaseHNVModel, self)._set_fields(fields) if not self.resource_ref: endpoint = self._endpoint.format( resource_id=self.resource_id, parent_id=self.parent_id, grandparent_id=self....
java
public Collection<Event> getEvents(final DateTime start, final DateTime end) { final Interval interval = new Interval(start, end); final Predicate<Event> withinInterval = new Predicate<Event>() { public boolean apply(Event input) { return interval.contains(input.getStart()); ...
java
public void setColor(Color color) { if (null == color) { String _message = "The color must be non null."; Object[] _parameters = {}; throw new IllegalArgumentException(MessageFormat.format(_message, _parameters)); } myColor = color; }
python
def user_has_email(username): """ make sure, that given user has an email associated """ user = api.user.get(username=username) if not user.getProperty("email"): msg = _( "This user doesn't have an email associated " "with their account." ) raise Invalid(msg) ...
java
public boolean deleteSinkAsync(String sinkName) throws ExecutionException, InterruptedException { // [START deleteSinkAsync] Future<Boolean> future = logging.deleteSinkAsync(sinkName); // ... boolean deleted = future.get(); if (deleted) { // the sink was deleted } else { // the sink ...
java
protected static InstallationModificationImpl.InstallationState load(final InstalledIdentity installedIdentity) throws IOException { final InstallationModificationImpl.InstallationState state = new InstallationModificationImpl.InstallationState(); for (final Layer layer : installedIdentity.getLayers()) ...
java
protected void parseAsynchronousContinuation(Element element, ActivityImpl activity) { boolean isAsyncBefore = isAsyncBefore(element); boolean isAsyncAfter = isAsyncAfter(element); boolean exclusive = isExclusive(element); // set properties on activity activity.setAsyncBefore(isAsyncBefore, exclus...
java
public void validateConnections() { boolean anyDestroyed = false; ManagedConnectionFactory mcf = pool.getConnectionManager().getManagedConnectionFactory(); if (mcf instanceof ValidatingManagedConnectionFactory) { ValidatingManagedConnectionFactory vcf = (ValidatingManagedConnection...
java
private void onMessageSent(MessageSentEvent event) { handler.post(() -> listener.onMessageSent(event)); log("Event published " + event.toString()); }
python
def get_conversation(self, peer_jid, *, current_jid=None): """ Get or create a new one-to-one conversation with a peer. :param peer_jid: The JID of the peer to converse with. :type peer_jid: :class:`aioxmpp.JID` :param current_jid: The current JID to lock the conversation to (se...
java
public <T extends Page> void mountPage(final String path, final Class<T> pageClass, final IPageParametersEncoder pageParametersEncoder) { mount(new MountedMapper(path, pageClass, pageParametersEncoder)); }
python
def commit_offsets_sync(self, offsets): """Commit specific offsets synchronously. This method will retry until the commit completes successfully or an unrecoverable error is encountered. Arguments: offsets (dict {TopicPartition: OffsetAndMetadata}): what to commit ...
java
public synchronized void addTask(int taskId) { Preconditions.checkArgument(!mTaskIdToInfo.containsKey(taskId), ""); mTaskIdToInfo.put(taskId, new TaskInfo().setJobId(mId).setTaskId(taskId) .setStatus(Status.CREATED).setErrorMessage("").setResult(null)); }
python
def save(self, *args, **kwargs): ''' Just add "s" if no plural name given. ''' if not self.pluralName: self.pluralName = self.name + 's' super(self.__class__, self).save(*args, **kwargs)
java
public String getSrcSet() { StringBuffer result = new StringBuffer(128); if (m_srcSet != null) { int items = m_srcSet.size(); for (Map.Entry<Integer, CmsJspImageBean> entry : m_srcSet.entrySet()) { CmsJspImageBean imageBean = entry.getValue(); // ...
python
def _fill_diagonals(m, diag_indices): """Fills diagonals of `nsites` matrices in `m` so rows sum to 0.""" assert m.ndim == 3, "M must have 3 dimensions" assert m.shape[1] == m.shape[2], "M must contain square matrices" for r in range(m.shape[0]): scipy.fill_diagonal(m[r], 0) m[r][diag_in...
python
def help(self, command=None): '''help prints the general function help, or help for a specific command Parameters ========== command: the command to get help for, if none, prints general help ''' from spython.utils import check_install check_install() cmd = ['singularit...
java
public StorageBuilder setUserCredentialsRepository( UserCredentialsRepository userCredentialsRepo, String userId ) { this.userCredentialsRepo = userCredentialsRepo; this.userId = userId; return this; }
python
def which_roles_can(self, name): """Which role can SendMail? """ targetPermissionRecords = AuthPermission.objects(creator=self.client, name=name).first() return [{'role': group.role} for group in targetPermissionRecords.groups]
java
public FailedRemediationBatch withFailedItems(RemediationConfiguration... failedItems) { if (this.failedItems == null) { setFailedItems(new com.amazonaws.internal.SdkInternalList<RemediationConfiguration>(failedItems.length)); } for (RemediationConfiguration ele : failedItems) { ...
python
def delete_repository(self, repository, params=None): """ Removes a shared file system repository. `<http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-snapshots.html>`_ :arg repository: A comma-separated list of repository names :arg master_timeout: Explicit...
java
public List<String> findNames(String classname, String[] pkgnames) { List<String> result; Class cls; result = new ArrayList<>(); try { cls = Class.forName(classname); result = findNames(cls, pkgnames); } catch (Throwable t) { getLogger().log(Level.SEVERE, "Failed to insta...
python
def hdf5_col(self, chain=-1): """Return a pytables column object. :Parameters: chain : integer The index of the chain. .. note:: This method is specific to the ``hdf5`` backend. """ return self.db._tables[chain].colinstances[self.name]
python
def GetTARInfo(self): """Retrieves the TAR info. Returns: tarfile.TARInfo: TAR info or None if it does not exist. Raises: PathSpecError: if the path specification is incorrect. """ if not self._tar_info: location = getattr(self.path_spec, 'location', None) if location is No...
python
def agg_conc(original_countries, aggregates, missing_countries='test', merge_multiple_string='_&_', log_missing_countries=None, log_merge_multiple_strings=None, coco=None, as_dataframe='sparse', original_countries_cl...
java
private void sendRecordFailedNotify(String reason) { Status failedStatus = new Status(StatusCodes.NS_RECORD_FAILED); failedStatus.setLevel(Status.ERROR); failedStatus.setClientid(getStreamId()); failedStatus.setDetails(getPublishedName()); failedStatus.setDesciption(reason);...
python
def energy_ratio_by_chunks(x, param): """ Calculates the sum of squares of chunk i out of N chunks expressed as a ratio with the sum of squares over the whole series. Takes as input parameters the number num_segments of segments to divide the series into and segment_focus which is the segment numbe...
python
def create(cls, propertyfile, allow_unknown): """ Create a Property instance by attempting to parse the given property file. @param propertyfile: A file name of a property file @param allow_unknown: Whether to accept unknown properties """ with open(propertyfile) as f: ...
python
def prox_tv(x, gamma, G, A=None, At=None, nu=1, tol=10e-4, maxit=200, use_matrix=True): r""" Total Variation proximal operator for graphs. This function computes the TV proximal operator for graphs. The TV norm is the one norm of the gradient. The gradient is defined in the function :meth:`pygsp.gr...