pub unsafe extern "C" fn FLAC__stream_encoder_set_metadata(
encoder: *mut FLAC__StreamEncoder,
metadata: *mut *mut FLAC__StreamMetadata,
num_blocks: u32,
) -> FLAC__boolpub unsafe extern "C" fn FLAC__stream_encoder_set_metadata(
encoder: *mut FLAC__StreamEncoder,
metadata: *mut *mut FLAC__StreamMetadata,
num_blocks: u32,
) -> FLAC__bool