pub fn new() -> Self {
        MetadataBuilder {
            metadata: Default::default(),
        }
    }
/// Instantiate a new `MetadataBuilder`.
Instantiate a new `MetadataBuilder`.
Instantiate a new ` MetadataBuilder ` .
pub fn new() -> Self {
        MetadataBuilder {
            metadata: Default::default(),
        }
    }
pub fn new ( ) -> Self { MetadataBuilder { metadata : Default :: default ( ) , } }
Instantiate a new `MetadataBuilder`.
Instantiate a new ` MetadataBuilder ` .