fromJson static method
Creates Class Object from Json
Implementation
static MetadataV12 fromJson(Map<String, dynamic> map) => MetadataV12(
modules: (map['modules'] as List)
.map((value) => ModuleMetadataV12.fromJson(value))
.toList(growable: false),
extrinsic: ExtrinsicMetadataV11.fromJson(map['extrinsic']));