| using System.Collections.Generic; | 
 | using System.Linq; | 
 | using OfficeOpenXml.FormulaParsing.ExpressionGraph; | 
 |  | 
 | namespace OfficeOpenXml.FormulaParsing.Excel.Functions.Information; | 
 |  | 
 | public class IsLogical : ExcelFunction { | 
 |   public override CompileResult Execute( | 
 |       IEnumerable<FunctionArgument> arguments, | 
 |       ParsingContext context) { | 
 |     var functionArguments = arguments as FunctionArgument[] ?? arguments.ToArray(); | 
 |     ValidateArguments(functionArguments, 1); | 
 |     var v = GetFirstValue(arguments); | 
 |     return CreateResult(v is bool, DataType.Boolean); | 
 |   } | 
 | } |