def METHOD_NAME(self, OutputPath, ModuleName, SecNum, keyStringList, FfsFile = None, Dict = None, IsMakefile = False):
    if self.ExpressionProcessed == False:
        self.Expression = self.Expression.replace("\n", " ").replace("\r", " ")
        ExpList = self.Expression.split()
        for Exp in ExpList:
            if Exp.upper() not in ('AND', 'OR', 'NOT', 'TRUE', 'FALSE', 'SOR', 'BEFORE', 'AFTER', 'END'):
                GuidStr = self.__FindGuidValue(Exp)
                if GuidStr is None:
                    EdkLogger.error("GenFds", RESOURCE_NOT_AVAILABLE,
                                    "Depex GUID %s could not be found in build DB! (ModuleName: %s)" % (Exp, ModuleName))
                self.Expression = self.Expression.replace(Exp, GuidStr)
        self.Expression = self.Expression.strip()
        self.ExpressionProcessed = True
    if self.DepexType == 'PEI_DEPEX_EXP':
        ModuleType = SUP_MODULE_PEIM
        SecType    = BINARY_FILE_TYPE_PEI_DEPEX
    elif self.DepexType == 'DXE_DEPEX_EXP':
        ModuleType = SUP_MODULE_DXE_DRIVER
        SecType    = BINARY_FILE_TYPE_DXE_DEPEX
    elif self.DepexType == 'SMM_DEPEX_EXP':
        ModuleType = SUP_MODULE_DXE_SMM_DRIVER
        SecType    = BINARY_FILE_TYPE_SMM_DEPEX
    else:
        EdkLogger.error("GenFds", FORMAT_INVALID,
                        "Depex type %s is not valid for module %s" % (self.DepexType, ModuleName))
    InputFile = os.path.join (OutputPath, ModuleName + SUP_MODULE_SEC + SecNum + '.depex')
    InputFile = os.path.normpath(InputFile)
    Depex = DependencyExpression(self.Expression, ModuleType)
    Depex.Generate(InputFile)
    OutputFile = os.path.join (OutputPath, ModuleName + SUP_MODULE_SEC + SecNum + '.dpx')
    OutputFile = os.path.normpath(OutputFile)
    GenFdsGlobalVariable.GenerateSection(OutputFile, [InputFile], Section.Section.SectionType.get (SecType), IsMakefile=IsMakefile)
    return [OutputFile], self.Alignment