diff --git a/pdata/internal/cmd/pdatagen/internal/base_fields.go b/pdata/internal/cmd/pdatagen/internal/base_fields.go
index a0bef0bd977f..4fa86dc0e48e 100644
--- a/pdata/internal/cmd/pdatagen/internal/base_fields.go
+++ b/pdata/internal/cmd/pdatagen/internal/base_fields.go
@@ -15,6 +15,7 @@
 package internal // import "go.opentelemetry.io/collector/pdata/internal/cmd/pdatagen/internal"
 
 import (
+	"bytes"
 	"os"
 	"strings"
 )
@@ -178,13 +179,13 @@ func (ms ${structName}) Set${fieldName}(v ${returnType}) {
 }`
 
 type baseField interface {
-	generateAccessors(ms baseStruct, sb *strings.Builder)
+	generateAccessors(ms baseStruct, sb *bytes.Buffer)
 
-	generateAccessorsTest(ms baseStruct, sb *strings.Builder)
+	generateAccessorsTest(ms baseStruct, sb *bytes.Buffer)
 
-	generateSetWithTestValue(sb *strings.Builder)
+	generateSetWithTestValue(sb *bytes.Buffer)
 
-	generateCopyToValue(ms baseStruct, sb *strings.Builder)
+	generateCopyToValue(ms baseStruct, sb *bytes.Buffer)
 }
 
 type sliceField struct {
@@ -192,7 +193,7 @@ type sliceField struct {
 	returnSlice baseSlice
 }
 
-func (sf *sliceField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (sf *sliceField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorSliceTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -212,7 +213,7 @@ func (sf *sliceField) generateAccessors(ms baseStruct, sb *strings.Builder) {
 	}))
 }
 
-func (sf *sliceField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (sf *sliceField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsSliceTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -232,11 +233,11 @@ func (sf *sliceField) generateAccessorsTest(ms baseStruct, sb *strings.Builder)
 	}))
 }
 
-func (sf *sliceField) generateSetWithTestValue(sb *strings.Builder) {
+func (sf *sliceField) generateSetWithTestValue(sb *bytes.Buffer) {
 	sb.WriteString("\tFillTest" + sf.returnSlice.getName() + "(New" + sf.returnSlice.getName() + "(&tv.orig." + sf.fieldName + "))")
 }
 
-func (sf *sliceField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (sf *sliceField) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tms." + sf.fieldName + "().CopyTo(dest." + sf.fieldName + "())")
 }
 
@@ -247,7 +248,7 @@ type messageValueField struct {
 	returnMessage baseStruct
 }
 
-func (mf *messageValueField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (mf *messageValueField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsMessageValueTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -269,7 +270,7 @@ func (mf *messageValueField) generateAccessors(ms baseStruct, sb *strings.Builde
 	}))
 }
 
-func (mf *messageValueField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (mf *messageValueField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsMessageValueTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -289,11 +290,11 @@ func (mf *messageValueField) generateAccessorsTest(ms baseStruct, sb *strings.Bu
 	}))
 }
 
-func (mf *messageValueField) generateSetWithTestValue(sb *strings.Builder) {
+func (mf *messageValueField) generateSetWithTestValue(sb *bytes.Buffer) {
 	sb.WriteString("\tFillTest" + mf.returnMessage.getName() + "(New" + mf.returnMessage.getName() + "(&tv.orig." + mf.fieldName + "))")
 }
 
-func (mf *messageValueField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (mf *messageValueField) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tms." + mf.fieldName + "().CopyTo(dest." + mf.fieldName + "())")
 }
 
@@ -306,7 +307,7 @@ type primitiveField struct {
 	testVal    string
 }
 
-func (pf *primitiveField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (pf *primitiveField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -325,7 +326,7 @@ func (pf *primitiveField) generateAccessors(ms baseStruct, sb *strings.Builder)
 	}))
 }
 
-func (pf *primitiveField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (pf *primitiveField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -344,11 +345,11 @@ func (pf *primitiveField) generateAccessorsTest(ms baseStruct, sb *strings.Build
 	}))
 }
 
-func (pf *primitiveField) generateSetWithTestValue(sb *strings.Builder) {
+func (pf *primitiveField) generateSetWithTestValue(sb *bytes.Buffer) {
 	sb.WriteString("\ttv.orig." + pf.fieldName + " = " + pf.testVal)
 }
 
-func (pf *primitiveField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (pf *primitiveField) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tdest.Set" + pf.fieldName + "(ms." + pf.fieldName + "())")
 }
 
@@ -369,7 +370,7 @@ type primitiveTypedField struct {
 	returnType      *primitiveType
 }
 
-func (ptf *primitiveTypedField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (ptf *primitiveTypedField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveTypedTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -398,7 +399,7 @@ func (ptf *primitiveTypedField) generateAccessors(ms baseStruct, sb *strings.Bui
 	}))
 }
 
-func (ptf *primitiveTypedField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (ptf *primitiveTypedField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveTypedTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -422,7 +423,7 @@ func (ptf *primitiveTypedField) generateAccessorsTest(ms baseStruct, sb *strings
 	}))
 }
 
-func (ptf *primitiveTypedField) generateSetWithTestValue(sb *strings.Builder) {
+func (ptf *primitiveTypedField) generateSetWithTestValue(sb *bytes.Buffer) {
 	originFieldName := ptf.fieldName
 	if ptf.originFieldName != "" {
 		originFieldName = ptf.originFieldName
@@ -430,7 +431,7 @@ func (ptf *primitiveTypedField) generateSetWithTestValue(sb *strings.Builder) {
 	sb.WriteString("\ttv.orig." + originFieldName + " = " + ptf.returnType.testVal)
 }
 
-func (ptf *primitiveTypedField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (ptf *primitiveTypedField) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tdest.Set" + ptf.fieldName + "(ms." + ptf.fieldName + "())")
 }
 
@@ -446,7 +447,7 @@ type primitiveSliceField struct {
 	testVal           string
 }
 
-func (psf *primitiveSliceField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (psf *primitiveSliceField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveSliceTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -468,7 +469,7 @@ func (psf *primitiveSliceField) generateAccessors(ms baseStruct, sb *strings.Bui
 	}))
 }
 
-func (psf *primitiveSliceField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (psf *primitiveSliceField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveSliceTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -492,11 +493,11 @@ func (psf *primitiveSliceField) generateAccessorsTest(ms baseStruct, sb *strings
 	}))
 }
 
-func (psf *primitiveSliceField) generateSetWithTestValue(sb *strings.Builder) {
+func (psf *primitiveSliceField) generateSetWithTestValue(sb *bytes.Buffer) {
 	sb.WriteString("\ttv.orig." + psf.fieldName + " = " + psf.testVal)
 }
 
-func (psf *primitiveSliceField) generateCopyToValue(ms baseStruct, sb *strings.Builder) {
+func (psf *primitiveSliceField) generateCopyToValue(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tms." + psf.fieldName + "().CopyTo(dest." + psf.fieldName + "())")
 }
 
@@ -511,7 +512,7 @@ type oneOfField struct {
 	omitOriginFieldNameInNames bool
 }
 
-func (of *oneOfField) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (of *oneOfField) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	of.generateTypeAccessors(ms, sb)
 	sb.WriteString("\n")
 	for _, v := range of.values {
@@ -520,7 +521,7 @@ func (of *oneOfField) generateAccessors(ms baseStruct, sb *strings.Builder) {
 	}
 }
 
-func (of *oneOfField) generateTypeAccessors(ms baseStruct, sb *strings.Builder) {
+func (of *oneOfField) generateTypeAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(oneOfTypeAccessorHeaderTemplate, func(name string) string {
 		switch name {
 		case "lowerOriginFieldName":
@@ -554,7 +555,7 @@ func (of *oneOfField) typeFuncName() string {
 	return of.originFieldName + typeSuffix
 }
 
-func (of *oneOfField) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (of *oneOfField) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(oneOfTypeAccessorHeaderTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -574,11 +575,11 @@ func (of *oneOfField) generateAccessorsTest(ms baseStruct, sb *strings.Builder)
 	}
 }
 
-func (of *oneOfField) generateSetWithTestValue(sb *strings.Builder) {
+func (of *oneOfField) generateSetWithTestValue(sb *bytes.Buffer) {
 	of.values[of.testValueIdx].generateSetWithTestValue(of, sb)
 }
 
-func (of *oneOfField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (of *oneOfField) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("\tswitch ms." + of.typeFuncName() + "() {\n")
 	for _, v := range of.values {
 		v.generateCopyToValue(of, sb)
@@ -589,11 +590,11 @@ func (of *oneOfField) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
 var _ baseField = (*oneOfField)(nil)
 
 type oneOfValue interface {
-	generateAccessors(ms baseStruct, of *oneOfField, sb *strings.Builder)
-	generateTests(ms baseStruct, of *oneOfField, sb *strings.Builder)
-	generateSetWithTestValue(of *oneOfField, sb *strings.Builder)
-	generateCopyToValue(of *oneOfField, sb *strings.Builder)
-	generateTypeSwitchCase(of *oneOfField, sb *strings.Builder)
+	generateAccessors(ms baseStruct, of *oneOfField, sb *bytes.Buffer)
+	generateTests(ms baseStruct, of *oneOfField, sb *bytes.Buffer)
+	generateSetWithTestValue(of *oneOfField, sb *bytes.Buffer)
+	generateCopyToValue(of *oneOfField, sb *bytes.Buffer)
+	generateTypeSwitchCase(of *oneOfField, sb *bytes.Buffer)
 }
 
 type oneOfPrimitiveValue struct {
@@ -604,7 +605,7 @@ type oneOfPrimitiveValue struct {
 	originFieldName string
 }
 
-func (opv *oneOfPrimitiveValue) generateAccessors(ms baseStruct, of *oneOfField, sb *strings.Builder) {
+func (opv *oneOfPrimitiveValue) generateAccessors(ms baseStruct, of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsOneOfPrimitiveTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -628,7 +629,7 @@ func (opv *oneOfPrimitiveValue) generateAccessors(ms baseStruct, of *oneOfField,
 	sb.WriteString("\n")
 }
 
-func (opv *oneOfPrimitiveValue) generateTests(ms baseStruct, of *oneOfField, sb *strings.Builder) {
+func (opv *oneOfPrimitiveValue) generateTests(ms baseStruct, of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsOneOfPrimitiveTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -659,16 +660,16 @@ func (opv *oneOfPrimitiveValue) accessorFieldName(of *oneOfField) string {
 	return opv.fieldName + of.originFieldName
 }
 
-func (opv *oneOfPrimitiveValue) generateSetWithTestValue(of *oneOfField, sb *strings.Builder) {
+func (opv *oneOfPrimitiveValue) generateSetWithTestValue(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString("\ttv.orig." + of.originFieldName + " = &" + of.originTypePrefix + opv.originFieldName + "{" + opv.originFieldName + ":" + opv.testVal + "}")
 }
 
-func (opv *oneOfPrimitiveValue) generateCopyToValue(of *oneOfField, sb *strings.Builder) {
+func (opv *oneOfPrimitiveValue) generateCopyToValue(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString("\tcase " + of.typeName + opv.fieldName + ":\n")
 	sb.WriteString("\tdest.Set" + opv.accessorFieldName(of) + "(ms." + opv.accessorFieldName(of) + "())\n")
 }
 
-func (opv *oneOfPrimitiveValue) generateTypeSwitchCase(of *oneOfField, sb *strings.Builder) {
+func (opv *oneOfPrimitiveValue) generateTypeSwitchCase(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString("\tcase *" + of.originTypePrefix + opv.originFieldName + ":\n")
 	sb.WriteString("\t\treturn " + of.typeName + opv.fieldName + "\n")
 }
@@ -681,7 +682,7 @@ type oneOfMessageValue struct {
 	returnMessage          *messageValueStruct
 }
 
-func (omv *oneOfMessageValue) generateAccessors(ms baseStruct, of *oneOfField, sb *strings.Builder) {
+func (omv *oneOfMessageValue) generateAccessors(ms baseStruct, of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsOneOfMessageTemplate, func(name string) string {
 		switch name {
 		case "fieldName":
@@ -709,7 +710,7 @@ func (omv *oneOfMessageValue) generateAccessors(ms baseStruct, of *oneOfField, s
 	sb.WriteString("\n")
 }
 
-func (omv *oneOfMessageValue) generateTests(ms baseStruct, of *oneOfField, sb *strings.Builder) {
+func (omv *oneOfMessageValue) generateTests(ms baseStruct, of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsOneOfMessageTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -729,12 +730,12 @@ func (omv *oneOfMessageValue) generateTests(ms baseStruct, of *oneOfField, sb *s
 	sb.WriteString("\n")
 }
 
-func (omv *oneOfMessageValue) generateSetWithTestValue(of *oneOfField, sb *strings.Builder) {
+func (omv *oneOfMessageValue) generateSetWithTestValue(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString("\ttv.orig." + of.originFieldName + " = &" + of.originTypePrefix + omv.fieldName + "{" + omv.fieldName + ": &" + omv.originFieldPackageName + "." + omv.fieldName + "{}}\n")
 	sb.WriteString("\tFillTest" + omv.returnMessage.structName + "(New" + omv.fieldName + "(tv.orig.Get" + omv.fieldName + "()))")
 }
 
-func (omv *oneOfMessageValue) generateCopyToValue(of *oneOfField, sb *strings.Builder) {
+func (omv *oneOfMessageValue) generateCopyToValue(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(copyToValueOneOfMessageTemplate, func(name string) string {
 		switch name {
 		case "fieldName":
@@ -750,7 +751,7 @@ func (omv *oneOfMessageValue) generateCopyToValue(of *oneOfField, sb *strings.Bu
 	sb.WriteString("\n")
 }
 
-func (omv *oneOfMessageValue) generateTypeSwitchCase(of *oneOfField, sb *strings.Builder) {
+func (omv *oneOfMessageValue) generateTypeSwitchCase(of *oneOfField, sb *bytes.Buffer) {
 	sb.WriteString("\tcase *" + of.originTypePrefix + omv.fieldName + ":\n")
 	sb.WriteString("\t\treturn " + of.typeName + omv.fieldName + "\n")
 }
@@ -765,7 +766,7 @@ type optionalPrimitiveValue struct {
 	originTypePrefix string
 }
 
-func (opv *optionalPrimitiveValue) generateAccessors(ms baseStruct, sb *strings.Builder) {
+func (opv *optionalPrimitiveValue) generateAccessors(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsOptionalPrimitiveValueTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -785,7 +786,7 @@ func (opv *optionalPrimitiveValue) generateAccessors(ms baseStruct, sb *strings.
 	sb.WriteString("\n")
 }
 
-func (opv *optionalPrimitiveValue) generateAccessorsTest(ms baseStruct, sb *strings.Builder) {
+func (opv *optionalPrimitiveValue) generateAccessorsTest(ms baseStruct, sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(accessorsPrimitiveTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -805,11 +806,11 @@ func (opv *optionalPrimitiveValue) generateAccessorsTest(ms baseStruct, sb *stri
 	sb.WriteString("\n")
 }
 
-func (opv *optionalPrimitiveValue) generateSetWithTestValue(sb *strings.Builder) {
+func (opv *optionalPrimitiveValue) generateSetWithTestValue(sb *bytes.Buffer) {
 	sb.WriteString("\ttv.orig." + opv.fieldName + "_ = &" + opv.originTypePrefix + opv.fieldName + "{" + opv.fieldName + ":" + opv.testVal + "}")
 }
 
-func (opv *optionalPrimitiveValue) generateCopyToValue(_ baseStruct, sb *strings.Builder) {
+func (opv *optionalPrimitiveValue) generateCopyToValue(_ baseStruct, sb *bytes.Buffer) {
 	sb.WriteString("if ms.Has" + opv.fieldName + "(){\n")
 	sb.WriteString("\tdest.Set" + opv.fieldName + "(ms." + opv.fieldName + "())\n")
 	sb.WriteString("}\n")
diff --git a/pdata/internal/cmd/pdatagen/internal/base_slices.go b/pdata/internal/cmd/pdatagen/internal/base_slices.go
index 5fc741a81a26..ba360f9d2d6b 100644
--- a/pdata/internal/cmd/pdatagen/internal/base_slices.go
+++ b/pdata/internal/cmd/pdatagen/internal/base_slices.go
@@ -15,8 +15,8 @@
 package internal // import "go.opentelemetry.io/collector/pdata/internal/cmd/pdatagen/internal"
 
 import (
+	"bytes"
 	"os"
-	"strings"
 )
 
 const commonSliceTemplate = `
@@ -489,17 +489,17 @@ func (ss *sliceOfPtrs) getPackageName() string {
 	return ss.packageName
 }
 
-func (ss *sliceOfPtrs) generateStruct(sb *strings.Builder) {
+func (ss *sliceOfPtrs) generateStruct(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(slicePtrTemplate, ss.templateFields()))
 	sb.WriteString(os.Expand(commonSliceTemplate, ss.templateFields()))
 }
 
-func (ss *sliceOfPtrs) generateTests(sb *strings.Builder) {
+func (ss *sliceOfPtrs) generateTests(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(slicePtrTestTemplate, ss.templateFields()))
 	sb.WriteString(os.Expand(commonSliceTestTemplate, ss.templateFields()))
 }
 
-func (ss *sliceOfPtrs) generateTestValueHelpers(sb *strings.Builder) {
+func (ss *sliceOfPtrs) generateTestValueHelpers(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(slicePtrGenerateTest, ss.templateFields()))
 }
 
@@ -518,7 +518,7 @@ func (ss *sliceOfPtrs) templateFields() func(name string) string {
 	}
 }
 
-func (ss *sliceOfPtrs) generateInternal(sb *strings.Builder) {
+func (ss *sliceOfPtrs) generateInternal(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(slicePtrInternalTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -549,17 +549,17 @@ func (ss *sliceOfValues) getPackageName() string {
 	return ss.packageName
 }
 
-func (ss *sliceOfValues) generateStruct(sb *strings.Builder) {
+func (ss *sliceOfValues) generateStruct(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(sliceValueTemplate, ss.templateFields()))
 	sb.WriteString(os.Expand(commonSliceTemplate, ss.templateFields()))
 }
 
-func (ss *sliceOfValues) generateTests(sb *strings.Builder) {
+func (ss *sliceOfValues) generateTests(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(sliceValueTestTemplate, ss.templateFields()))
 	sb.WriteString(os.Expand(commonSliceTestTemplate, ss.templateFields()))
 }
 
-func (ss *sliceOfValues) generateTestValueHelpers(sb *strings.Builder) {
+func (ss *sliceOfValues) generateTestValueHelpers(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(sliceValueGenerateTest, ss.templateFields()))
 }
 
@@ -578,7 +578,7 @@ func (ss *sliceOfValues) templateFields() func(name string) string {
 	}
 }
 
-func (ss *sliceOfValues) generateInternal(sb *strings.Builder) {
+func (ss *sliceOfValues) generateInternal(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(sliceValueInternalTemplate, func(name string) string {
 		switch name {
 		case "structName":
diff --git a/pdata/internal/cmd/pdatagen/internal/base_structs.go b/pdata/internal/cmd/pdatagen/internal/base_structs.go
index db1091cab778..5400c034cb9d 100644
--- a/pdata/internal/cmd/pdatagen/internal/base_structs.go
+++ b/pdata/internal/cmd/pdatagen/internal/base_structs.go
@@ -15,8 +15,8 @@
 package internal // import "go.opentelemetry.io/collector/pdata/internal/cmd/pdatagen/internal"
 
 import (
+	"bytes"
 	"os"
-	"strings"
 )
 
 const messageValueTemplate = `${description}
@@ -106,13 +106,13 @@ type baseStruct interface {
 
 	getPackageName() string
 
-	generateStruct(sb *strings.Builder)
+	generateStruct(sb *bytes.Buffer)
 
-	generateTests(sb *strings.Builder)
+	generateTests(sb *bytes.Buffer)
 
-	generateTestValueHelpers(sb *strings.Builder)
+	generateTestValueHelpers(sb *bytes.Buffer)
 
-	generateInternal(sb *strings.Builder)
+	generateInternal(sb *bytes.Buffer)
 }
 
 type messageValueStruct struct {
@@ -131,7 +131,7 @@ func (ms *messageValueStruct) getPackageName() string {
 	return ms.packageName
 }
 
-func (ms *messageValueStruct) generateStruct(sb *strings.Builder) {
+func (ms *messageValueStruct) generateStruct(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(messageValueTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -169,7 +169,7 @@ func (ms *messageValueStruct) generateStruct(sb *strings.Builder) {
 	}))
 }
 
-func (ms *messageValueStruct) generateTests(sb *strings.Builder) {
+func (ms *messageValueStruct) generateTests(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(messageValueTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -186,7 +186,7 @@ func (ms *messageValueStruct) generateTests(sb *strings.Builder) {
 	}
 }
 
-func (ms *messageValueStruct) generateTestValueHelpers(sb *strings.Builder) {
+func (ms *messageValueStruct) generateTestValueHelpers(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(messageValueGenerateTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -217,7 +217,7 @@ func (ms *messageValueStruct) generateTestValueHelpers(sb *strings.Builder) {
 	}))
 }
 
-func (ms *messageValueStruct) generateInternal(sb *strings.Builder) {
+func (ms *messageValueStruct) generateInternal(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(messageValueAliasTemplate, func(name string) string {
 		switch name {
 		case "structName":
diff --git a/pdata/internal/cmd/pdatagen/internal/files.go b/pdata/internal/cmd/pdatagen/internal/files.go
index a66f2f719106..3b7c83d578e8 100644
--- a/pdata/internal/cmd/pdatagen/internal/files.go
+++ b/pdata/internal/cmd/pdatagen/internal/files.go
@@ -15,9 +15,9 @@
 package internal // import "go.opentelemetry.io/collector/pdata/internal/cmd/pdatagen/internal"
 
 import (
+	"bytes"
 	"os"
 	"path/filepath"
-	"strings"
 )
 
 const header = `// Copyright The OpenTelemetry Authors
@@ -59,12 +59,7 @@ type File struct {
 
 // GenerateFile generates the configured data structures for this File.
 func (f *File) GenerateFile() error {
-	fp, err := os.Create(filepath.Join(".", "pdata", f.PackageName, generateFileName(f.Name)))
-	if err != nil {
-		return err
-	}
-
-	var sb strings.Builder
+	var sb bytes.Buffer
 	generateHeader(&sb, f.PackageName)
 
 	// Add imports
@@ -85,21 +80,14 @@ func (f *File) GenerateFile() error {
 	}
 	sb.WriteString(newLine)
 
-	_, err = fp.WriteString(sb.String())
-	if err != nil {
-		return err
-	}
-	return fp.Close()
+	// ignore gosec complain about permissions being `0644`.
+	//nolint:gosec
+	return os.WriteFile(filepath.Join("pdata", f.PackageName, generateFileName(f.Name)), sb.Bytes(), 0644)
 }
 
 // GenerateTestFile generates tests for the configured data structures for this File.
 func (f *File) GenerateTestFile() error {
-	fp, err := os.Create(filepath.Join(".", "pdata", f.PackageName, generateTestFileName(f.Name)))
-	if err != nil {
-		return err
-	}
-
-	var sb strings.Builder
+	var sb bytes.Buffer
 	generateHeader(&sb, f.PackageName)
 
 	// Add imports
@@ -119,21 +107,14 @@ func (f *File) GenerateTestFile() error {
 		s.generateTests(&sb)
 	}
 
-	_, err = fp.WriteString(sb.String())
-	if err != nil {
-		return err
-	}
-	return fp.Close()
+	// ignore gosec complain about permissions being `0644`.
+	//nolint:gosec
+	return os.WriteFile(filepath.Join("pdata", f.PackageName, generateTestFileName(f.Name)), sb.Bytes(), 0644)
 }
 
 // GenerateInternalFile generates the internal pdata structures for this File.
 func (f *File) GenerateInternalFile() error {
-	fp, err := os.Create(filepath.Join(".", "pdata", "internal", generateInternalFileName(f.Name)))
-	if err != nil {
-		return err
-	}
-
-	var sb strings.Builder
+	var sb bytes.Buffer
 	generateHeader(&sb, "internal")
 
 	// Add imports
@@ -160,11 +141,9 @@ func (f *File) GenerateInternalFile() error {
 	}
 	sb.WriteString(newLine)
 
-	_, err = fp.WriteString(sb.String())
-	if err != nil {
-		return err
-	}
-	return fp.Close()
+	// ignore gosec complain about permissions being `0644`.
+	//nolint:gosec
+	return os.WriteFile(filepath.Join("pdata", "internal", generateInternalFileName(f.Name)), sb.Bytes(), 0644)
 }
 
 func generateFileName(fileName string) string {
@@ -179,7 +158,7 @@ func generateTestFileName(fileName string) string {
 	return "generated_" + fileName + "_test.go"
 }
 
-func generateHeader(sb *strings.Builder, packageName string) {
+func generateHeader(sb *bytes.Buffer, packageName string) {
 	sb.WriteString(header)
 	sb.WriteString(newLine + newLine)
 	sb.WriteString("package " + packageName)
diff --git a/pdata/internal/cmd/pdatagen/internal/primitive_slice_structs.go b/pdata/internal/cmd/pdatagen/internal/primitive_slice_structs.go
index a410faae1316..15827d2839cb 100644
--- a/pdata/internal/cmd/pdatagen/internal/primitive_slice_structs.go
+++ b/pdata/internal/cmd/pdatagen/internal/primitive_slice_structs.go
@@ -15,6 +15,7 @@
 package internal // import "go.opentelemetry.io/collector/pdata/internal/cmd/pdatagen/internal"
 
 import (
+	"bytes"
 	"os"
 	"strings"
 )
@@ -178,7 +179,7 @@ func (iss *primitiveSliceStruct) getPackageName() string {
 	return iss.packageName
 }
 
-func (iss *primitiveSliceStruct) generateStruct(sb *strings.Builder) {
+func (iss *primitiveSliceStruct) generateStruct(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(primitiveSliceTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -193,7 +194,7 @@ func (iss *primitiveSliceStruct) generateStruct(sb *strings.Builder) {
 	}))
 }
 
-func (iss *primitiveSliceStruct) generateTests(sb *strings.Builder) {
+func (iss *primitiveSliceStruct) generateTests(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(immutableSliceTestTemplate, func(name string) string {
 		switch name {
 		case "structName":
@@ -206,9 +207,9 @@ func (iss *primitiveSliceStruct) generateTests(sb *strings.Builder) {
 	}))
 }
 
-func (iss *primitiveSliceStruct) generateTestValueHelpers(*strings.Builder) {}
+func (iss *primitiveSliceStruct) generateTestValueHelpers(*bytes.Buffer) {}
 
-func (iss *primitiveSliceStruct) generateInternal(sb *strings.Builder) {
+func (iss *primitiveSliceStruct) generateInternal(sb *bytes.Buffer) {
 	sb.WriteString(os.Expand(primitiveSliceInternalTemplate, func(name string) string {
 		switch name {
 		case "structName":