diff --git a/packages/compress-stringify/typescript/src/compress-stringify-node.ts b/packages/compress-stringify/typescript/src/compress-stringify-node.ts
index cca702055..32f132131 100644
--- a/packages/compress-stringify/typescript/src/compress-stringify-node.ts
+++ b/packages/compress-stringify/typescript/src/compress-stringify-node.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -23,10 +24,10 @@ async function compressStringifyNode(
   options: CompressStringifyOptions = {}
 ) : Promise<CompressStringifyNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryStream, data: { data: input }  },
   ]
 
diff --git a/packages/compress-stringify/typescript/src/compress-stringify.ts b/packages/compress-stringify/typescript/src/compress-stringify.ts
index 75aa1fba9..9b9530f9b 100644
--- a/packages/compress-stringify/typescript/src/compress-stringify.ts
+++ b/packages/compress-stringify/typescript/src/compress-stringify.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -27,10 +28,10 @@ async function compressStringify(
   options: CompressStringifyOptions = {}
 ) : Promise<CompressStringifyResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryStream, data: { data: input }  },
   ]
 
diff --git a/packages/compress-stringify/typescript/src/parse-string-decompress-node.ts b/packages/compress-stringify/typescript/src/parse-string-decompress-node.ts
index 897fd24b7..63c59a588 100644
--- a/packages/compress-stringify/typescript/src/parse-string-decompress-node.ts
+++ b/packages/compress-stringify/typescript/src/parse-string-decompress-node.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -23,10 +24,10 @@ async function parseStringDecompressNode(
   options: ParseStringDecompressOptions = {}
 ) : Promise<ParseStringDecompressNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryStream, data: { data: input }  },
   ]
 
diff --git a/packages/compress-stringify/typescript/src/parse-string-decompress.ts b/packages/compress-stringify/typescript/src/parse-string-decompress.ts
index 5c7d4e6a7..ca75101eb 100644
--- a/packages/compress-stringify/typescript/src/parse-string-decompress.ts
+++ b/packages/compress-stringify/typescript/src/parse-string-decompress.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -27,10 +28,10 @@ async function parseStringDecompress(
   options: ParseStringDecompressOptions = {}
 ) : Promise<ParseStringDecompressResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryStream, data: { data: input }  },
   ]
 
diff --git a/packages/dicom/typescript/src/apply-presentation-state-to-image-node.ts b/packages/dicom/typescript/src/apply-presentation-state-to-image-node.ts
index ceab1b4a7..1b74cb97d 100644
--- a/packages/dicom/typescript/src/apply-presentation-state-to-image-node.ts
+++ b/packages/dicom/typescript/src/apply-presentation-state-to-image-node.ts
@@ -2,6 +2,7 @@ import {
   JsonObject,
   Image,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -24,11 +25,11 @@ async function applyPresentationStateToImageNode(
   options: ApplyPresentationStateToImageOptions = {}
 ) : Promise<ApplyPresentationStateToImageNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.JsonObject },
     { type: InterfaceTypes.Image },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: imageIn, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/apply-presentation-state-to-image.ts b/packages/dicom/typescript/src/apply-presentation-state-to-image.ts
index c82804814..edeebdaa2 100644
--- a/packages/dicom/typescript/src/apply-presentation-state-to-image.ts
+++ b/packages/dicom/typescript/src/apply-presentation-state-to-image.ts
@@ -2,6 +2,7 @@ import {
   JsonObject,
   Image,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -28,11 +29,11 @@ async function applyPresentationStateToImage(
   options: ApplyPresentationStateToImageOptions = {}
 ) : Promise<ApplyPresentationStateToImageResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.JsonObject },
     { type: InterfaceTypes.Image },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: imageIn, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/read-dicom-encapsulated-pdf-node.ts b/packages/dicom/typescript/src/read-dicom-encapsulated-pdf-node.ts
index f712800a5..dffa9e393 100644
--- a/packages/dicom/typescript/src/read-dicom-encapsulated-pdf-node.ts
+++ b/packages/dicom/typescript/src/read-dicom-encapsulated-pdf-node.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -23,10 +24,10 @@ async function readDicomEncapsulatedPdfNode(
   options: ReadDicomEncapsulatedPdfOptions = {}
 ) : Promise<ReadDicomEncapsulatedPdfNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/read-dicom-encapsulated-pdf.ts b/packages/dicom/typescript/src/read-dicom-encapsulated-pdf.ts
index 898d83b25..8a5b397a4 100644
--- a/packages/dicom/typescript/src/read-dicom-encapsulated-pdf.ts
+++ b/packages/dicom/typescript/src/read-dicom-encapsulated-pdf.ts
@@ -1,6 +1,7 @@
 import {
   BinaryStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -27,10 +28,10 @@ async function readDicomEncapsulatedPdf(
   options: ReadDicomEncapsulatedPdfOptions = {}
 ) : Promise<ReadDicomEncapsulatedPdfResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.BinaryStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/structured-report-to-html-node.ts b/packages/dicom/typescript/src/structured-report-to-html-node.ts
index fa6050f6a..6319a1acf 100644
--- a/packages/dicom/typescript/src/structured-report-to-html-node.ts
+++ b/packages/dicom/typescript/src/structured-report-to-html-node.ts
@@ -1,6 +1,7 @@
 import {
   TextStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -23,10 +24,10 @@ async function structuredReportToHtmlNode(
   options: StructuredReportToHtmlOptions = {}
 ) : Promise<StructuredReportToHtmlNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.TextStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/structured-report-to-html.ts b/packages/dicom/typescript/src/structured-report-to-html.ts
index 761ba4494..7c6177c76 100644
--- a/packages/dicom/typescript/src/structured-report-to-html.ts
+++ b/packages/dicom/typescript/src/structured-report-to-html.ts
@@ -1,6 +1,7 @@
 import {
   TextStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -27,10 +28,10 @@ async function structuredReportToHtml(
   options: StructuredReportToHtmlOptions = {}
 ) : Promise<StructuredReportToHtmlResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.TextStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/structured-report-to-text-node.ts b/packages/dicom/typescript/src/structured-report-to-text-node.ts
index 0a546fcd9..fd8548a46 100644
--- a/packages/dicom/typescript/src/structured-report-to-text-node.ts
+++ b/packages/dicom/typescript/src/structured-report-to-text-node.ts
@@ -1,6 +1,7 @@
 import {
   TextStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipelineNode
 } from 'itk-wasm'
@@ -23,10 +24,10 @@ async function structuredReportToTextNode(
   options: StructuredReportToTextOptions = {}
 ) : Promise<StructuredReportToTextNodeResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.TextStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/packages/dicom/typescript/src/structured-report-to-text.ts b/packages/dicom/typescript/src/structured-report-to-text.ts
index f9c3f28ed..f1c4bd3ad 100644
--- a/packages/dicom/typescript/src/structured-report-to-text.ts
+++ b/packages/dicom/typescript/src/structured-report-to-text.ts
@@ -1,6 +1,7 @@
 import {
   TextStream,
   InterfaceTypes,
+  PipelineOutput,
   PipelineInput,
   runPipeline
 } from 'itk-wasm'
@@ -27,10 +28,10 @@ async function structuredReportToText(
   options: StructuredReportToTextOptions = {}
 ) : Promise<StructuredReportToTextResult> {
 
-  const desiredOutputs = [
+  const desiredOutputs: Array<PipelineOutput> = [
     { type: InterfaceTypes.TextStream },
   ]
-  const inputs: [ PipelineInput ] = [
+  const inputs: Array<PipelineInput> = [
     { type: InterfaceTypes.BinaryFile, data: { data: dicomFile, path: "file0" }  },
   ]
 
diff --git a/src/bindgen/typescript.js b/src/bindgen/typescript.js
index ee2fc9014..b9e42cba5 100644
--- a/src/bindgen/typescript.js
+++ b/src/bindgen/typescript.js
@@ -243,7 +243,8 @@ function typescriptBindings(outputDir, buildDir, wasmBinaries, options, forNode=
         resultsImportTypes.add(outputType)
       }
       resultContent += `  ${camelCase(output.name)}: ${outputType}\n\n`
-      readmeResultTable.push([`\`${camelCase(output.name)}\``, `*${outputType}*`, output.description])
+      const readmeOutputArray = output.itemsExpectedMax > 1 ? "[]" : ""
+      readmeResultTable.push([`\`${camelCase(output.name)}\``, `*${outputType}${readmeOutputArray}*`, output.description])
     })
     readmeResult += markdownTable(readmeResultTable, { align: ['c', 'c', 'l'] }) + '\n'
 
@@ -285,7 +286,8 @@ function typescriptBindings(outputDir, buildDir, wasmBinaries, options, forNode=
           optionsImportTypes.add(parameterType)
         }
         optionsInterfaceContent += `  ${camelCase(parameter.name)}?: ${parameterType}\n\n`
-        readmeOptionsTable.push([`\`${camelCase(parameter.name)}\``, `*${parameterType}*`, parameter.description])
+        const readmeParameterArray = parameter.itemsExpectedMax > 1 ? "[]" : ""
+        readmeOptionsTable.push([`\`${camelCase(parameter.name)}\``, `*${parameterType}${readmeParameterArray}*`, parameter.description])
       })
       // Insert the import statement in the beginning for the file.
       if(optionsImportTypes.size !== 0)
@@ -348,7 +350,8 @@ function typescriptBindings(outputDir, buildDir, wasmBinaries, options, forNode=
       }
       const typescriptType = interfaceJsonTypeToTypeScriptType.get(input.type)
       functionContent += ` * @param {${typescriptType}} ${camelCase(input.name)} - ${input.description}\n`
-      readmeParametersTable.push([`\`${camelCase(input.name)}\``, `*${typescriptType}*`, input.description])
+      const readmeParameterArray = input.itemsExpectedMax > 1 ? "[]" : ""
+      readmeParametersTable.push([`\`${camelCase(input.name)}\``, `*${typescriptType}${readmeParameterArray}*`, input.description])
     })
     functionContent += ` *\n * @returns {Promise<${modulePascalCase}${nodeTextCamel}Result>} - result object\n`
     functionContent += ` */\n`