type CreateAccountMemberParams struct {
	Email    string   `json:"email"`
	Roles    []string `json:"roles,omitempty"`
	Policies []Policy `json:"policies,omitempty"`
	Status   string   `json:"status,omitempty"`
}

func (api *API) CreateAccountMember(ctx context.Context, rc *ResourceContainer, params CreateAccountMemberParams) (AccountMember, error) {
	invite := AccountMemberInvitation{
		Email: params.Email,
	}

	if len(params.Roles) > 0 {
		invite.Roles = params.Roles
	}

	// ... etc
}

func (api *API) CreateAccountMember(ctx context.Context, rc *ResourceContainer, params CreateAccountMemberParams) (AccountMember, error) {
	if rc.Level != AccountRouteLevel {
		return AccountMember{}, fmt.Errorf(errInvalidResourceContainerAccess, rc.Level)
	}

	invite := AccountMemberInvitation{
		Email:  params.EmailAddress,
		Status: params.Status,
	}

	roles := []AccountRole{}
	for i := 0; i < len(params.Roles); i++ {
		roles = append(roles, AccountRole{ID: invite.Roles[i]})
	}
	err := validateRolesAndPolicies(roles, params.Policies)
	if err != nil {
		return AccountMember{}, err
	}

	if params.Roles != nil {
		invite.Roles = params.Roles
	} else if params.Policies != nil {
		invite.Policies = params.Policies
	}

	uri := fmt.Sprintf("/accounts/%s/members", rc.Identifier)
	res, err := api.makeRequestContext(ctx, http.MethodPost, uri, invite)
	if err != nil {
		return AccountMember{}, err
	}

	var accountMemberListResponse AccountMemberDetailResponse
	err = json.Unmarshal(res, &accountMemberListResponse)
	if err != nil {
		return AccountMember{}, fmt.Errorf("%s: %w", errUnmarshalError, err)
	}

	return accountMemberListResponse.Result, nil
}