docs: func (s *GetDevicePoolCompatibilityInput) Validate() error {
  	invalidParams := request.ErrInvalidParams{Context: "GetDevicePoolCompatibilityInput"}
  	if s.AppArn != nil && len(*s.AppArn) < 32 {
  		invalidParams.Add(request.NewErrParamMinLen("AppArn", 32))
  	}
  	if s.DevicePoolArn == nil {
  		invalidParams.Add(request.NewErrParamRequired("DevicePoolArn"))
  	}
  	if s.DevicePoolArn != nil && len(*s.DevicePoolArn) < 32 {
  		invalidParams.Add(request.NewErrParamMinLen("DevicePoolArn", 32))
  	}
  	if s.Configuration != nil {
  		if err := s.Configuration.Validate(); err != nil {
  			invalidParams.AddNested("Configuration", err.(request.ErrInvalidParams))
  		}
  	}
  	if s.Test != nil {
  		if err := s.Test.Validate(); err != nil {
  			invalidParams.AddNested("Test", err.(request.ErrInvalidParams))
  		}
  	}
  
  	if invalidParams.Len() > 0 {
  		return invalidParams
  	}
  	return nil
  }