FieldCountry represents the country field.

FieldEmail represents the email field.

FieldFirstName represents the first name field.

FieldLastName represents the last name field.

FieldNickname represents the nickname field.

MatchTypeEqual represents an exact match.

MatchTypeLike represents a LIKE match.

Filter is a struct representing a filter for finding users.

User represents a person using our platform.

Field is an enum providing valid fields for filtering.

MatchType is an enum providing valid matching mechanisms for filtering values.