SubjectFromWebIdentityToken string `xml:",omitempty"`
}

// AssumeRoleWithClientGrantsResponse contains the result of successful AssumeRoleWithClientGrants request.
type AssumeRoleWithClientGrantsResponse struct {
	XMLName          xml.Name           `xml:"https://sts.amazonaws.com/doc/2011-06-15/ AssumeRoleWithClientGrantsResponse" json:"-"`
	Result           ClientGrantsResult `xml:"AssumeRoleWithClientGrantsResult"`

			ParentPolicyMapping: policyName,
		},
		UpdatedAt: updatedAt,
	}))

	var encodedSuccessResponse []byte
	switch action {
	case clientGrants:
		clientGrantsResponse := &AssumeRoleWithClientGrantsResponse{
			Result: ClientGrantsResult{
				Credentials:      cred,
				SubjectFromToken: subFromToken,
			},
		}
		clientGrantsResponse.ResponseMetadata.RequestID = w.Header().Get(xhttp.AmzRequestID)