invitation_params = {
    team_id: 1,
    emails: ["[email protected]","[email protected]","[email protected]"]
}

def invite(invitation_params)
    team_id = invitation_params["team_id"]
    user_team_lookups = UserTeamLookup.where(team_id: team_id)

    users_ids = user_tenant_lookups.pluck(:user_id)
    users = User.where(id: users_ids)
    emails = users.pluck(:email)

    matches = emails & invitation_params["emails"]
    if matches.any?
        invitation_params["emails"] = invitation_params["emails"] - matches
    end
end