OptionalconnectionDatabase connection name, when the tenant has more than one.
OptionalemailEmail identifier. Required unless the connection signs in by username, and whenever password is omitted.
Optionalfamily_Optionalgiven_OptionalnameOptionalpasswordChecked against the connection's password policy. Omit it to create the user without one: they set it through the password reset email, and until then nothing signs in with a password.
Optionaluser_OptionalusernameUsername identifier, stored as typed (case-sensitive). No @ or whitespace.
The new user for FaableAuthClient.signup. Which identifier is required follows the database connection's login identifier: an
emailconnection needsemail, ausernameone needsusername, andemail_or_usernameaccepts either (or both).