func (sys *IAMSys) GetRolePolicy(arnStr string) (arn.ARN, string, error) {
	roleArn, err := arn.Parse(arnStr)
	if err != nil {
		return arn.ARN{}, "", fmt.Errorf("RoleARN parse err: %v", err)
	}
	rolePolicy, ok := sys.rolesMap[roleArn]
	if !ok {
		return arn.ARN{}, "", fmt.Errorf("RoleARN %s is not defined.", arnStr)
	}
	return roleArn, rolePolicy, nil
}

		Client:      s.TestSuiteCommon.client,
		STSEndpoint: s.endPoint,
		GetWebIDTokenExpiry: func() (*cr.WebIdentityToken, error) {
			return &cr.WebIdentityToken{
				Token: token,
			}, nil
		},
		RoleARN: roleARN,
	}

	value, err := webID.Retrieve()
	if err != nil {
		c.Fatalf("Expected to generate STS creds, got err: %#v", err)
	}
	// fmt.Printf("value: %#v\n", value)