SchemaField constructor
      const
      SchemaField({ 
    
- required String name,
- bool? isNullable,
- required SchemaType outputType,
- required List<SchemaArg> args,
- Deprecation? deprecation,
- String? documentation,
Create a new schema field.
Implementation
const SchemaField({
  required this.name,
  this.isNullable,
  required this.outputType,
  required this.args,
  this.deprecation,
  this.documentation,
});