human
Solve the following python programming problem given the following code:
def __init__(self, modelXbrl) : 
    self.isInline = (modelXbrl.modelDocument.type == ModelDocument.Type.INLINEXBRL) 
    self.url = modelXbrl.modelDocument.uri 
    self.basename = modelXbrl.modelDocument.basename 
    self.filepath = modelXbrl.modelDocument.filepath 
    for attrName in Report.REPORT_ATTRS : 
        setattr (self, self.lc (attrName), None) 
self.instanceName = modelXbrl.modelDocument.basename 
    for f in modelXbrl.facts : 
        cntx = f.context 
        if ((cntx is not None) and cntx.isStartEndPeriod and (not cntx.hasSegment)) : 
            if ((cntx.qname is not None) and (f.qname.localName in Report.REPORT_ATTRS) and f.xValue) : 
                setattr (self, self.lc (f.qname.localName), f.xValue) 
self.reportedFiles = ({ modelXbrl.modelDocument.basename } | referencedFiles (modelXbrl)) 
    self.renderedFiles = set () 
    self.hasUsGaapTaxonomy = False 
    sourceDir = os.path.dirname (modelXbrl.modelDocument.filepath) 
    refDocUris = set () 
    def addRefDocs(doc) : 
        for refDoc in doc.referencesDocument.keys () : 
            _file = refDoc.filepath 
            if (refDoc.uri not in refDocUris) : 
                refDocUris.add (refDoc.uri) 
                if (refDoc.filepath and refDoc.filepath.startswith (sourceDir)) : 
                    self.reportedFiles.add (refDoc.filepath [(len (sourceDir) + 1) :]) 
addRefDocs (refDoc) 
if ((refDoc.type == ModelDocument.Type.SCHEMA) and refDoc.targetNamespace) : 
                nsAuthority = authority (refDoc.targetNamespace, includeScheme = False) 
                nsPath = refDoc.targetNamespace.split ('/') 
                if (len (nsPath) > 2) : 
                    if ((nsAuthority in ('fasb.org', 'xbrl.us')) and (nsPath [(- 2)] == 'us-gaap')) : 
                        self.hasUsGaapTaxonomy = True 
addRefDocs (modelXbrl.modelDocument) 

    
    

    Fix the buggy line: if ((cntx.qname is not None) and (f.qname.localName in Report.REPORT_ATTRS) and f.xValue) :
assistant
#Here is Python program to fix the buggy line: if ((cntx.

if ((f.qname is not None) and (f.qname.localName in Report.REPORT_ATTRS) and f.xValue) :