# InstanceRequirementsWithMetadataRequest
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The architecture type, virtualization type, and other attributes for the instance types. When you specify instance attributes, Amazon EC2 will identify instance types with those attributes.

If you specify `InstanceRequirementsWithMetadataRequest`, you can't specify `InstanceTypes`.

## Contents
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 ** ArchitectureType.N **   
The architecture type.  
Type: Array of strings  
Array Members: Minimum number of 0 items. Maximum number of 3 items.  
Valid Values: `i386 | x86_64 | arm64 | x86_64_mac | arm64_mac`   
Required: No

 ** InstanceRequirements **   
The attributes for the instance types. When you specify instance attributes, Amazon EC2 will identify instance types with those attributes.  
Type: [InstanceRequirementsRequest](API_InstanceRequirementsRequest.md) object  
Required: No

 ** VirtualizationType.N **   
The virtualization type.  
Type: Array of strings  
Array Members: Minimum number of 0 items. Maximum number of 2 items.  
Valid Values: `hvm | paravirtual`   
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/InstanceRequirementsWithMetadataRequest) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/InstanceRequirementsWithMetadataRequest) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/InstanceRequirementsWithMetadataRequest)