- Fixed variable use in added function for documentation

Signed-off-by: LeandroC89 <[email protected]>

Author: LeandroC89

docs/StardustDocs/topics/write.md

@@ -123,11 +123,11 @@ Add new sheets without using Apache POI directly by using a parameter to keep us
 
 ```kotlin
 // Create a new Excel workbook with a single sheet called "allPersons", replacing the file if it already exists -> Current sheets: allPersons
-val allPersonsSheet = df.writeExcel(file, sheetName = "allPersons")
+df.writeExcel(file, sheetName = "allPersons")
 // Add a new sheet to the previous file without replacing it, by setting keepFile = true -> Current sheets: allPersons, happyPersons
-val happyPersonsSheet = df.filter { person -> person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "happyPersons", keepFile = true)
+df.filter { person -> person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "happyPersons", keepFile = true)
 // Add a new sheet to the previous file without replacing it, by setting keepFile = true -> Current sheets: allPersons, happyPersons, unhappyPersons
-val unhappyPersonsSheet = df.filter { person -> !person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "unhappyPersons", keepFile = true)
+df.filter { person -> !person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "unhappyPersons", keepFile = true)
 ```
 
 <!---END-->

tests/src/test/kotlin/org/jetbrains/kotlinx/dataframe/samples/api/Write.kt

@@ -126,11 +126,11 @@ class Write : TestBase() {
         useTempFile { file ->
             // SampleStart
             // Create a new Excel workbook with a single sheet called "allPersons", replacing the file if it already exists -> Current sheets: allPersons
-            val allPersonsSheet = df.writeExcel(file, sheetName = "allPersons")
+            df.writeExcel(file, sheetName = "allPersons")
             // Add a new sheet to the previous file without replacing it, by setting keepFile = true -> Current sheets: allPersons, happyPersons
-            val happyPersonsSheet = df.filter { person -> person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "happyPersons", keepFile = true)
+            df.filter { person -> person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "happyPersons", keepFile = true)
             // Add a new sheet to the previous file without replacing it, by setting keepFile = true -> Current sheets: allPersons, happyPersons, unhappyPersons
-            val unhappyPersonsSheet = df.filter { person -> !person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "unhappyPersons", keepFile = true)
+            df.filter { person -> !person.isHappy }.remove("isHappy").writeExcel(file, sheetName = "unhappyPersons", keepFile = true)
             // SampleEnd
         }
     }