pub trait WithMetadataHashableFields {
// Required methods
fn struct_metadata_opt(&mut self) -> Option<&mut StructMetadata>;
fn struct_metadata_opt_ref(&self) -> Option<&StructMetadata>;
}pub trait WithMetadataHashableFields {
// Required methods
fn struct_metadata_opt(&mut self) -> Option<&mut StructMetadata>;
fn struct_metadata_opt_ref(&self) -> Option<&StructMetadata>;
}