heed 0.22.1

A fully typed LMDB (mdb.master) wrapper with minimum overhead
Documentation 
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pub use database::{Database, DatabaseOpenOptions};
#[cfg(master3)]
pub use encrypted_database::{EncryptedDatabase, EncryptedDatabaseOpenOptions};

mod database;
#[cfg(master3)]
mod encrypted_database;

/// Statistics for a database in the environment.
#[derive(Debug, Clone, Copy)]
pub struct DatabaseStat {
    /// Size of a database page.
    /// This is currently the same for all databases.
    pub page_size: u32,
    /// Depth (height) of the B-tree.
    pub depth: u32,
    /// Number of internal (non-leaf) pages
    pub branch_pages: usize,
    /// Number of leaf pages.
    pub leaf_pages: usize,
    /// Number of overflow pages.
    pub overflow_pages: usize,
    /// Number of data items.
    pub entries: usize,
}