Support multiple files (#19449)

Author: condorcorde

modules/openapi-generator/src/main/resources/powershell/api.mustache

@@ -147,7 +147,7 @@ function {{{vendorExtensions.x-powershell-method-name}}} {
             throw "Error! The required parameter `{{paramName}}` missing when calling {{operationId}}."
         }
         {{#isFile}}
-        $LocalVarFormParameters['{{baseName}}'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath(${{{paramName}}})
+        $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}} | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         {{/isFile}}
         {{^isFile}}
         $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}}
@@ -159,7 +159,7 @@ function {{{vendorExtensions.x-powershell-method-name}}} {
         {{^isNullable}}
         if (${{{paramName}}}) {
         {{#isFile}}
-            $LocalVarFormParameters['{{baseName}}'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath(${{{paramName}}})
+            $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}} | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         {{/isFile}}
         {{^isFile}}
             $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}}
@@ -169,7 +169,7 @@ function {{{vendorExtensions.x-powershell-method-name}}} {
         {{/isNullable}}
         {{#isNullable}}
         {{#isFile}}
-        $LocalVarFormParameters['{{baseName}}'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath(${{{paramName}}})
+        $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}} | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         {{/isFile}}
         {{^isFile}}
         $LocalVarFormParameters['{{baseName}}'] = ${{{paramName}}}

samples/client/echo_api/powershell/src/PSOpenAPITools/Api/BodyApi.ps1

@@ -198,7 +198,7 @@ function Test-BodyMultipartFormdataArrayOfBinary {
         if (!$Files) {
             throw "Error! The required parameter `Files` missing when calling test_body_multipart_formdata_arrayOfBinary."
         }
-        $LocalVarFormParameters['files'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Files)
+        $LocalVarFormParameters['files'] = $Files | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
 
         $LocalVarResult = Invoke-ApiClient -Method 'POST' `
                                 -Uri $LocalVarUri `
@@ -273,7 +273,7 @@ function Test-BodyMultipartFormdataSingleBinary {
         $LocalVarUri = '/body/application/octetstream/single_binary'
 
         if ($MyFile) {
-            $LocalVarFormParameters['my-file'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($MyFile)
+            $LocalVarFormParameters['my-file'] = $MyFile | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         }
 
         $LocalVarResult = Invoke-ApiClient -Method 'POST' `

samples/client/petstore/powershell/src/PSPetstore/Api/PSFakeApi.ps1

@@ -909,7 +909,7 @@ function Test-PSEndpointParameters {
         $LocalVarFormParameters['byte'] = $Byte
 
         if ($Binary) {
-            $LocalVarFormParameters['binary'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($Binary)
+            $LocalVarFormParameters['binary'] = $Binary | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         }
 
         if ($Date) {

samples/client/petstore/powershell/src/PSPetstore/Api/PSPetApi.ps1

@@ -679,7 +679,7 @@ function Invoke-PSUploadFile {
         }
 
         if ($File) {
-            $LocalVarFormParameters['file'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($File)
+            $LocalVarFormParameters['file'] = $File | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
         }
 
 
@@ -778,7 +778,7 @@ function Invoke-PSUploadFileWithRequiredFile {
         if (!$RequiredFile) {
             throw "Error! The required parameter `RequiredFile` missing when calling uploadFileWithRequiredFile."
         }
-        $LocalVarFormParameters['requiredFile'] = $executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($RequiredFile)
+        $LocalVarFormParameters['requiredFile'] = $RequiredFile | Foreach-Object { [System.IO.FileInfo]$executionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($_) }
 
 
         $LocalVarResult = Invoke-PSApiClient -Method 'POST' `