use of cbit.vcell.model.Structure in project vcell by virtualcell.
the class BioModelEditorStructureTableModel method bioModelChange.
@Override
protected void bioModelChange(PropertyChangeEvent evt) {
super.bioModelChange(evt);
BioModel oldValue = (BioModel) evt.getOldValue();
if (oldValue != null) {
for (Structure s : oldValue.getModel().getStructures()) {
s.removePropertyChangeListener(this);
}
}
BioModel newValue = (BioModel) evt.getNewValue();
if (newValue != null) {
for (Structure s : newValue.getModel().getStructures()) {
s.addPropertyChangeListener(this);
}
}
}
use of cbit.vcell.model.Structure in project vcell by virtualcell.
the class SimulationContext method gatherIssues.
public void gatherIssues(IssueContext issueContext, List<Issue> issueVector, boolean bIgnoreMathDescription) {
// issueContext = issueContext.newChildContext(ContextType.SimContext, this);
if (applicationType.equals(Application.RULE_BASED_STOCHASTIC)) {
for (ReactionRuleSpec rrs : getReactionContext().getReactionRuleSpecs()) {
if (rrs.isExcluded()) {
continue;
}
ReactionRule rr = rrs.getReactionRule();
if (rr.getReactantPatterns().size() > 2) {
String message = "NFSim doesn't support more than 2 reactants within a reaction rule.";
issueVector.add(new Issue(rr, issueContext, IssueCategory.Identifiers, message, Issue.Severity.WARNING));
}
if (rr.isReversible() && rr.getProductPatterns().size() > 2) {
String message = "NFSim doesn't support more than 2 products within a reversible reaction rule.";
issueVector.add(new Issue(rr, issueContext, IssueCategory.Identifiers, message, Issue.Severity.WARNING));
}
}
for (ReactionSpec rrs : getReactionContext().getReactionSpecs()) {
if (rrs.isExcluded()) {
continue;
}
ReactionStep rs = rrs.getReactionStep();
if (rs.getNumReactants() > 2) {
String message = "NFSim doesn't support more than 2 reactants within a reaction step.";
issueVector.add(new Issue(rs, issueContext, IssueCategory.Identifiers, message, Issue.Severity.WARNING));
}
if (rs.isReversible() && rs.getNumProducts() > 2) {
String message = "NFSim doesn't support more than 2 products within a reversible reaction step.";
issueVector.add(new Issue(rs, issueContext, IssueCategory.Identifiers, message, Issue.Severity.WARNING));
}
}
// we give warning when we have plain reactions with participants with patterns;
// making rules from these may result in inconsistent interpretation for the constant rates
boolean isParticipantWithPattern = false;
for (ReactionSpec rrs : getReactionContext().getReactionSpecs()) {
if (rrs.isExcluded()) {
continue;
}
ReactionStep rs = rrs.getReactionStep();
for (Reactant r : rs.getReactants()) {
if (r.getSpeciesContext().hasSpeciesPattern()) {
isParticipantWithPattern = true;
break;
}
}
if (isParticipantWithPattern) {
break;
}
for (Product p : rs.getProducts()) {
if (p.getSpeciesContext().hasSpeciesPattern()) {
isParticipantWithPattern = true;
break;
}
}
if (isParticipantWithPattern) {
break;
}
}
if (isParticipantWithPattern) {
String message = SimulationContext.rateWarning2;
String tooltip = SimulationContext.rateWarning;
issueVector.add(new Issue(this, issueContext, IssueCategory.Identifiers, message, tooltip, Issue.Severity.WARNING));
}
for (Structure struct : getModel().getStructures()) {
String name = struct.getName();
if (!name.equals(TokenMangler.fixTokenStrict(name))) {
String msg = "'" + name + "' not legal identifier for rule-based stochastic applications, try '" + TokenMangler.fixTokenStrict(name) + "'.";
issueVector.add(new Issue(struct, issueContext, IssueCategory.Identifiers, msg, Issue.Severity.ERROR));
}
}
}
if (fieldBioEvents != null) {
for (BioEvent bioEvent : fieldBioEvents) {
bioEvent.gatherIssues(issueContext, issueVector);
}
}
if (spatialObjects != null) {
for (SpatialObject spatialObject : spatialObjects) {
spatialObject.gatherIssues(issueContext, issueVector);
}
}
if (spatialProcesses != null) {
for (SpatialProcess spatialProcess : spatialProcesses) {
spatialProcess.gatherIssues(issueContext, issueVector);
}
}
if (applicationType.equals(Application.NETWORK_DETERMINISTIC) && getModel().getRbmModelContainer().getMolecularTypeList().size() > 0) {
// we're going to use network transformer to flatten (or we already did)
if (isInsufficientIterations()) {
issueVector.add(new Issue(this, issueContext, IssueCategory.RbmNetworkConstraintsBad, IssueInsufficientIterations, Issue.Severity.WARNING));
}
if (isInsufficientMaxMolecules()) {
issueVector.add(new Issue(this, issueContext, IssueCategory.RbmNetworkConstraintsBad, IssueInsufficientMolecules, Issue.Severity.WARNING));
}
}
getReactionContext().gatherIssues(issueContext, issueVector);
getGeometryContext().gatherIssues(issueContext, issueVector);
if (fieldAnalysisTasks != null) {
for (AnalysisTask analysisTask : fieldAnalysisTasks) {
analysisTask.gatherIssues(issueContext, issueVector);
}
}
getOutputFunctionContext().gatherIssues(issueContext, issueVector);
getMicroscopeMeasurement().gatherIssues(issueContext, issueVector);
if (getMathDescription() != null && !bIgnoreMathDescription) {
getMathDescription().gatherIssues(issueContext, issueVector);
}
if (networkConstraints == null) {
// issueVector.add(new Issue(this, issueContext, IssueCategory.RbmNetworkConstraintsBad, "Network Constraints is null", Issue.Severity.ERROR));
} else {
networkConstraints.gatherIssues(issueContext, issueVector);
}
}
use of cbit.vcell.model.Structure in project vcell by virtualcell.
the class SpeciesContextSpec method convertParticlesToConcentration.
public Expression convertParticlesToConcentration(Expression iniParticles) throws ExpressionException, MappingException {
Expression iniConcentrationExpr = null;
Structure structure = getSpeciesContext().getStructure();
double structSize = computeStructureSize();
if (structure instanceof Membrane) {
// iniConcentration(molecules/um2) = particles/size(um2)
try {
iniConcentrationExpr = new Expression((iniParticles.evaluateConstant() * 1.0) / structSize);
} catch (ExpressionException e) {
iniConcentrationExpr = Expression.div(iniParticles, new Expression(structSize)).flatten();
}
} else {
// convert concentration(particles/volume) to number of particles
// particles = [iniParticles(uM)/size(um3)]*KMOLE
// @Note : 'kMole' variable here is used only as a var name, it does not represent the previously known ReservedSymbol KMOLE.
ModelUnitSystem modelUnitSystem = getSimulationContext().getModel().getUnitSystem();
VCUnitDefinition stochasticToVolSubstance = modelUnitSystem.getVolumeSubstanceUnit().divideBy(modelUnitSystem.getStochasticSubstanceUnit());
double stochasticToVolSubstanceScale = stochasticToVolSubstance.getDimensionlessScale().doubleValue();
try {
iniConcentrationExpr = new Expression((iniParticles.evaluateConstant() * stochasticToVolSubstanceScale / structSize));
} catch (ExpressionException e) {
Expression numeratorExpr = Expression.mult(iniParticles, new Expression(stochasticToVolSubstanceScale));
Expression denominatorExpr = new Expression(structSize);
iniConcentrationExpr = Expression.div(numeratorExpr, denominatorExpr).flatten();
}
}
return iniConcentrationExpr;
}
use of cbit.vcell.model.Structure in project vcell by virtualcell.
the class SpeciesContextSpec method computeStructureSize.
private double computeStructureSize() throws ExpressionException, MappingException {
Structure structure = getSpeciesContext().getStructure();
StructureMapping sm = getSimulationContext().getGeometryContext().getStructureMapping(structure);
double structSize = 0;
if (getSimulationContext().getGeometry().getDimension() == 0) {
Expression sizeParameterExpression = sm.getSizeParameter().getExpression();
if (sizeParameterExpression == null || sizeParameterExpression.isZero()) {
throw new RuntimeException("\nIn application '" + getSimulationContext().getName() + "', " + "size of structure '" + structure.getName() + "' is required to convert " + "concentration to number of particles.\n\nPlease go to 'Structure Mapping' tab to check the size.");
}
structSize = sizeParameterExpression.evaluateConstant();
} else {
StructureMapping structureMapping = getSimulationContext().getGeometryContext().getStructureMapping(structure);
GeometryClass gc = structureMapping.getGeometryClass();
if (gc == null) {
throw new MappingException("model structure '" + structure.getName() + "' not mapped to a geometry subdomain");
}
try {
GeometricRegion[] geometricRegions = getSimulationContext().getGeometry().getGeometrySurfaceDescription().getGeometricRegions(gc);
if (geometricRegions == null) {
throw new MappingException("Geometry is not updated.");
}
for (GeometricRegion gr : geometricRegions) {
structSize += gr.getSize();
}
} catch (Exception ex) {
}
}
return structSize;
}
use of cbit.vcell.model.Structure in project vcell by virtualcell.
the class StochMathMapping method refreshMathDescription.
/**
* set up a math description based on current simulationContext.
*/
@Override
protected void refreshMathDescription() throws MappingException, MatrixException, MathException, ExpressionException, ModelException {
// use local variable instead of using getter all the time.
SimulationContext simContext = getSimulationContext();
GeometryClass geometryClass = simContext.getGeometry().getGeometrySpec().getSubVolumes()[0];
Domain domain = new Domain(geometryClass);
// local structure mapping list
StructureMapping[] structureMappings = simContext.getGeometryContext().getStructureMappings();
// We have to check if all the reactions are able to tranform to stochastic jump processes before generating the math.
String stochChkMsg = simContext.getModel().isValidForStochApp();
if (!(stochChkMsg.equals(""))) {
throw new ModelException("Problem updating math description: " + simContext.getName() + "\n" + stochChkMsg);
}
simContext.checkValidity();
//
if (simContext.getGeometry().getDimension() > 0) {
throw new MappingException("nonspatial stochastic math mapping requires 0-dimensional geometry");
}
//
for (int i = 0; i < structureMappings.length; i++) {
if (structureMappings[i] instanceof MembraneMapping) {
if (((MembraneMapping) structureMappings[i]).getCalculateVoltage()) {
throw new MappingException("electric potential not yet supported for particle models");
}
}
}
//
// fail if any events
//
BioEvent[] bioEvents = simContext.getBioEvents();
if (bioEvents != null && bioEvents.length > 0) {
throw new MappingException("events not yet supported for particle-based models");
}
//
// verify that all structures are mapped to subvolumes and all subvolumes are mapped to a structure
//
Structure[] structures = simContext.getGeometryContext().getModel().getStructures();
for (int i = 0; i < structures.length; i++) {
StructureMapping sm = simContext.getGeometryContext().getStructureMapping(structures[i]);
if (sm == null || (sm instanceof FeatureMapping && ((FeatureMapping) sm).getGeometryClass() == null)) {
throw new MappingException("model structure '" + structures[i].getName() + "' not mapped to a geometry subVolume");
}
if (sm != null && (sm instanceof MembraneMapping) && ((MembraneMapping) sm).getVolumeFractionParameter() != null) {
Expression volFractExp = ((MembraneMapping) sm).getVolumeFractionParameter().getExpression();
try {
if (volFractExp != null) {
double volFract = volFractExp.evaluateConstant();
if (volFract >= 1.0) {
throw new MappingException("model structure '" + (getSimulationContext().getModel().getStructureTopology().getInsideFeature(((MembraneMapping) sm).getMembrane()).getName() + "' has volume fraction >= 1.0"));
}
}
} catch (ExpressionException e) {
e.printStackTrace(System.out);
}
}
}
SubVolume[] subVolumes = simContext.getGeometryContext().getGeometry().getGeometrySpec().getSubVolumes();
for (int i = 0; i < subVolumes.length; i++) {
Structure[] mappedStructures = simContext.getGeometryContext().getStructuresFromGeometryClass(subVolumes[i]);
if (mappedStructures == null || mappedStructures.length == 0) {
throw new MappingException("geometry subVolume '" + subVolumes[i].getName() + "' not mapped from a model structure");
}
}
//
// gather only those reactionSteps that are not "excluded"
//
ReactionSpec[] reactionSpecs = simContext.getReactionContext().getReactionSpecs();
Vector<ReactionStep> rsList = new Vector<ReactionStep>();
for (int i = 0; i < reactionSpecs.length; i++) {
if (!reactionSpecs[i].isExcluded()) {
rsList.add(reactionSpecs[i].getReactionStep());
}
}
//
for (ReactionStep reactionStep : rsList) {
Kinetics.UnresolvedParameter[] unresolvedParameters = reactionStep.getKinetics().getUnresolvedParameters();
if (unresolvedParameters != null && unresolvedParameters.length > 0) {
StringBuffer buffer = new StringBuffer();
for (int j = 0; j < unresolvedParameters.length; j++) {
if (j > 0) {
buffer.append(", ");
}
buffer.append(unresolvedParameters[j].getName());
}
throw new MappingException("In Application '" + simContext.getName() + "', " + reactionStep.getDisplayType() + " '" + reactionStep.getName() + "' contains unresolved identifier(s): " + buffer);
}
}
//
// create new MathDescription (based on simContext's previous MathDescription if possible)
//
MathDescription oldMathDesc = simContext.getMathDescription();
mathDesc = null;
if (oldMathDesc != null) {
if (oldMathDesc.getVersion() != null) {
mathDesc = new MathDescription(oldMathDesc.getVersion());
} else {
mathDesc = new MathDescription(oldMathDesc.getName());
}
} else {
mathDesc = new MathDescription(simContext.getName() + "_generated");
}
//
// temporarily place all variables in a hashtable (before binding) and discarding duplicates
//
VariableHash varHash = new VariableHash();
//
// conversion factors
//
Model model = simContext.getModel();
varHash.addVariable(new Constant(getMathSymbol(model.getKMOLE(), null), getIdentifierSubstitutions(model.getKMOLE().getExpression(), model.getKMOLE().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getN_PMOLE(), null), getIdentifierSubstitutions(model.getN_PMOLE().getExpression(), model.getN_PMOLE().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getPI_CONSTANT(), null), getIdentifierSubstitutions(model.getPI_CONSTANT().getExpression(), model.getPI_CONSTANT().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getFARADAY_CONSTANT(), null), getIdentifierSubstitutions(model.getFARADAY_CONSTANT().getExpression(), model.getFARADAY_CONSTANT().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getFARADAY_CONSTANT_NMOLE(), null), getIdentifierSubstitutions(model.getFARADAY_CONSTANT_NMOLE().getExpression(), model.getFARADAY_CONSTANT_NMOLE().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getGAS_CONSTANT(), null), getIdentifierSubstitutions(model.getGAS_CONSTANT().getExpression(), model.getGAS_CONSTANT().getUnitDefinition(), null)));
varHash.addVariable(new Constant(getMathSymbol(model.getTEMPERATURE(), null), getIdentifierSubstitutions(new Expression(simContext.getTemperatureKelvin()), model.getTEMPERATURE().getUnitDefinition(), null)));
Enumeration<SpeciesContextMapping> enum1 = getSpeciesContextMappings();
while (enum1.hasMoreElements()) {
SpeciesContextMapping scm = enum1.nextElement();
if (scm.getVariable() instanceof StochVolVariable) {
varHash.addVariable(scm.getVariable());
}
}
// deals with model parameters
ModelParameter[] modelParameters = simContext.getModel().getModelParameters();
for (int j = 0; j < modelParameters.length; j++) {
Expression expr = getSubstitutedExpr(modelParameters[j].getExpression(), true, false);
expr = getIdentifierSubstitutions(expr, modelParameters[j].getUnitDefinition(), geometryClass);
varHash.addVariable(newFunctionOrConstant(getMathSymbol(modelParameters[j], geometryClass), expr, geometryClass));
}
// added July 2009, ElectricalStimulusParameter electric mapping tab
ElectricalStimulus[] elecStimulus = simContext.getElectricalStimuli();
if (elecStimulus.length > 0) {
throw new MappingException("Modles with electrophysiology are not supported for stochastic applications.");
}
for (int j = 0; j < structureMappings.length; j++) {
if (structureMappings[j] instanceof MembraneMapping) {
MembraneMapping memMapping = (MembraneMapping) structureMappings[j];
Parameter initialVoltageParm = memMapping.getInitialVoltageParameter();
try {
Expression exp = initialVoltageParm.getExpression();
exp.evaluateConstant();
varHash.addVariable(newFunctionOrConstant(getMathSymbol(memMapping.getMembrane().getMembraneVoltage(), memMapping.getGeometryClass()), getIdentifierSubstitutions(memMapping.getInitialVoltageParameter().getExpression(), memMapping.getInitialVoltageParameter().getUnitDefinition(), memMapping.getGeometryClass()), memMapping.getGeometryClass()));
} catch (ExpressionException e) {
e.printStackTrace(System.out);
throw new MappingException("Membrane initial voltage: " + initialVoltageParm.getName() + " cannot be evaluated as constant.");
}
}
}
//
for (ReactionStep rs : rsList) {
if (rs.getKinetics() instanceof LumpedKinetics) {
throw new RuntimeException("Lumped Kinetics not yet supported for Stochastic Math Generation");
}
Kinetics.KineticsParameter[] parameters = rs.getKinetics().getKineticsParameters();
for (KineticsParameter parameter : parameters) {
//
if ((parameter.getRole() == Kinetics.ROLE_CurrentDensity) && (parameter.getExpression() == null || parameter.getExpression().isZero())) {
continue;
}
//
// don't add rate, we'll do it later when creating the jump processes
//
// if (parameter.getRole() == Kinetics.ROLE_ReactionRate) {
// continue;
// }
//
// don't add mass action reverse parameter if irreversible
//
// if (!rs.isReversible() && parameters[i].getRole() == Kinetics.ROLE_KReverse){
// continue;
// }
Expression expr = getSubstitutedExpr(parameter.getExpression(), true, false);
varHash.addVariable(newFunctionOrConstant(getMathSymbol(parameter, geometryClass), getIdentifierSubstitutions(expr, parameter.getUnitDefinition(), geometryClass), geometryClass));
}
}
// the parameter "Size" is already put into mathsymbolmapping in refreshSpeciesContextMapping()
for (int i = 0; i < structureMappings.length; i++) {
StructureMapping sm = structureMappings[i];
StructureMapping.StructureMappingParameter parm = sm.getParameterFromRole(StructureMapping.ROLE_Size);
if (parm.getExpression() != null) {
try {
double value = parm.getExpression().evaluateConstant();
varHash.addVariable(new Constant(getMathSymbol(parm, sm.getGeometryClass()), new Expression(value)));
} catch (ExpressionException e) {
// varHash.addVariable(new Function(getMathSymbol0(parm,sm),getIdentifierSubstitutions(parm.getExpression(),parm.getUnitDefinition(),sm)));
e.printStackTrace(System.out);
throw new MappingException("Size of structure:" + sm.getNameScope().getName() + " cannot be evaluated as constant.");
}
}
}
SpeciesContextSpec[] speciesContextSpecs = getSimulationContext().getReactionContext().getSpeciesContextSpecs();
addInitialConditions(domain, speciesContextSpecs, varHash);
//
// constant species (either function or constant)
//
enum1 = getSpeciesContextMappings();
while (enum1.hasMoreElements()) {
SpeciesContextMapping scm = (SpeciesContextMapping) enum1.nextElement();
if (scm.getVariable() instanceof Constant) {
varHash.addVariable(scm.getVariable());
}
}
//
if (simContext.getGeometryContext().getGeometry() != null) {
try {
mathDesc.setGeometry(simContext.getGeometryContext().getGeometry());
} catch (java.beans.PropertyVetoException e) {
e.printStackTrace(System.out);
throw new MappingException("failure setting geometry " + e.getMessage());
}
} else {
throw new MappingException("Geometry must be defined in Application " + simContext.getName());
}
//
// create subDomains
//
SubVolume subVolume = simContext.getGeometry().getGeometrySpec().getSubVolumes()[0];
SubDomain subDomain = new CompartmentSubDomain(subVolume.getName(), 0);
mathDesc.addSubDomain(subDomain);
//
// functions: species which is not a variable, but has dependency expression
//
enum1 = getSpeciesContextMappings();
while (enum1.hasMoreElements()) {
SpeciesContextMapping scm = (SpeciesContextMapping) enum1.nextElement();
if (scm.getVariable() == null && scm.getDependencyExpression() != null) {
StructureMapping sm = simContext.getGeometryContext().getStructureMapping(scm.getSpeciesContext().getStructure());
Expression exp = scm.getDependencyExpression();
exp.bindExpression(this);
SpeciesCountParameter spCountParam = getSpeciesCountParameter(scm.getSpeciesContext());
varHash.addVariable(new Function(getMathSymbol(spCountParam, sm.getGeometryClass()), getIdentifierSubstitutions(exp, spCountParam.getUnitDefinition(), sm.getGeometryClass()), domain));
}
}
addJumpProcesses(varHash, geometryClass, subDomain);
//
for (int i = 0; i < fieldMathMappingParameters.length; i++) {
if (fieldMathMappingParameters[i] instanceof UnitFactorParameter) {
varHash.addVariable(newFunctionOrConstant(getMathSymbol(fieldMathMappingParameters[i], geometryClass), getIdentifierSubstitutions(fieldMathMappingParameters[i].getExpression(), fieldMathMappingParameters[i].getUnitDefinition(), geometryClass), fieldMathMappingParameters[i].getGeometryClass()));
}
}
//
// set Variables to MathDescription all at once with the order resolved by "VariableHash"
//
mathDesc.setAllVariables(varHash.getAlphabeticallyOrderedVariables());
//
// set up variable initial conditions in subDomain
//
SpeciesContextSpec[] scSpecs = simContext.getReactionContext().getSpeciesContextSpecs();
for (int i = 0; i < speciesContextSpecs.length; i++) {
// get stochastic variable by name
SpeciesCountParameter spCountParam = getSpeciesCountParameter(speciesContextSpecs[i].getSpeciesContext());
StructureMapping sm = simContext.getGeometryContext().getStructureMapping(speciesContextSpecs[i].getSpeciesContext().getStructure());
String varName = getMathSymbol(spCountParam, sm.getGeometryClass());
StochVolVariable var = (StochVolVariable) mathDesc.getVariable(varName);
// stochastic use initial number of particles
SpeciesContextSpec.SpeciesContextSpecParameter initParm = scSpecs[i].getInitialCountParameter();
// stochastic variables initial expression.
if (initParm != null) {
VarIniCondition varIni = null;
if (!scSpecs[i].isConstant() && getSimulationContext().isRandomizeInitCondition()) {
varIni = new VarIniPoissonExpectedCount(var, new Expression(getMathSymbol(initParm, sm.getGeometryClass())));
} else {
varIni = new VarIniCount(var, new Expression(getMathSymbol(initParm, sm.getGeometryClass())));
}
subDomain.addVarIniCondition(varIni);
}
}
//
for (int i = 0; i < fieldMathMappingParameters.length; i++) {
if (fieldMathMappingParameters[i] instanceof UnitFactorParameter) {
Variable variable = newFunctionOrConstant(getMathSymbol(fieldMathMappingParameters[i], geometryClass), getIdentifierSubstitutions(fieldMathMappingParameters[i].getExpression(), fieldMathMappingParameters[i].getUnitDefinition(), geometryClass), fieldMathMappingParameters[i].getGeometryClass());
if (mathDesc.getVariable(variable.getName()) == null) {
mathDesc.addVariable(variable);
}
}
if (fieldMathMappingParameters[i] instanceof ObservableCountParameter) {
Variable variable = newFunctionOrConstant(getMathSymbol(fieldMathMappingParameters[i], geometryClass), getIdentifierSubstitutions(fieldMathMappingParameters[i].getExpression(), fieldMathMappingParameters[i].getUnitDefinition(), geometryClass), fieldMathMappingParameters[i].getGeometryClass());
if (mathDesc.getVariable(variable.getName()) == null) {
mathDesc.addVariable(variable);
}
}
}
if (!mathDesc.isValid()) {
System.out.println(mathDesc.getVCML_database());
throw new MappingException("generated an invalid mathDescription: " + mathDesc.getWarning());
}
}
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