# Functions
EmptyFieldError creates an ErrInvalidField for an empty field.
ErrInvalidf creates an ErrInvalid using a custom format.
ErrNotFoundf creates an ErrNotFound using a custom format.
InvalidFieldError creates an ErrInvalidField for a specific field and reason.
New creates a new error with errors.New.
# Structs
ErrValidation is a validation error for a specific field and reason.
# Type aliases
ErrInvalid represents an invalid error.
ErrNotFound represents a not found error.