extensionField constant
Field definition for extension.
Implementation
static const extensionField = FieldDefinition(
name: 'extension',
getValue: _getExtension,
description: '''
May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.''',
cardinality: Cardinality(min: 0, max: BoolChoice(true)),
);