Plugin implementation of the 'field_test_multiple' formatter.
@FieldFormatter(
id = "field_test_multiple",
module = "field_test",
label = @Translation("Multiple"),
description = @Translation("Multiple formatter"),
field_types = {
"test_field"
},
settings = {
"test_formatter_setting_multiple" = "dummy test string"
}
)
Expanded class hierarchy of TestFieldMultipleFormatter