Method insert

src/avro/src/schema.rs:1027–1030

(&mut self, index: usize, schema: NamedSchemaPiece)

    }

    fn insert(&mut self, index: usize, schema: NamedSchemaPiece) {
        assert_none!(self.named[index]);
        self.named[index] = Some(schema);
    }

    fn parse_named_type(
        &mut self,