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//! # What is `Ditto`?
//!
//! `Ditto` is a cross-platform peer-to-peer database that allows apps
//! to sync with and even without internet connectivity.
//!
//! Install Ditto into your application, then use the APIs to read and write data
//! into its storage system, and it will then automatically sync any changes to other devices.
//!
//! Unlike other synchronization solutions, `Ditto` is designed for "peer-to-peer" synchronization
//! where it can directly communicate with other devices even without an Internet connection.
//!
//! In addition, `Ditto` automatically manages the complexity of using multiple network transports,
//! like Bluetooth, P2P Wi-Fi, and Local Area Network,
//! to find and connect to other devices and then synchronize any changes.
//!
//! # How to `Ditto`
//!
//! First, you need to create a Ditto instance using the `DittoBuilder` :
//! ```rust,no_run
//! # use std::sync::Arc;
//! use dittolive_ditto::prelude::*;
//! // 👇 See <https://docs.ditto.live/onboarding> for instructions on obtaining your app ID and
//! // playground token.
//! let app_id = AppId::from_env("YOUR_APP_ID_VAR").unwrap();
//! let shared_token = "YOUR-PLAYGROUND-TOKEN-HERE".to_string();
//! let cloud_sync = true;
//! let custom_auth_url = None;
//! let ditto = Ditto::builder()
//! .with_root(Arc::new(
//! // 👇 folder where Ditto will keep its persistent data
//! PersistentRoot::from_current_exe().expect("Invalid Ditto Root"),
//! ))
//! // 👇 this Identity is used to start developing features using Ditto
//! .with_identity(|ditto_root| {
//! identity::OnlinePlayground::new(
//! ditto_root,
//! app_id,
//! shared_token,
//! cloud_sync,
//! custom_auth_url,
//! )
//! })
//! .unwrap()
//! .build()
//! .unwrap();
//! ```
//! Then, create a [`Collection`](crate::store::collection::Collection) in the
//! [`Store`](crate::store::Store).
//! ```
//! # use dittolive_ditto::prelude::Ditto;
//! # fn doc_store(ditto:Ditto) {
//! let store = ditto.store();
//! let collection = store.collection("fancy_name");
//! # }
//! ```
//! And finally add some content inside, which we name
//! [`Document`](crate::store::collection::document).
//! ```
//! # use dittolive_ditto::prelude::Ditto;
//! # use dittolive_ditto::store::collection::Collection;
//! # fn test_collection(collection: Collection) {
//! use serde::{Deserialize, Serialize};
//! #[derive(Serialize, Deserialize)]
//! struct Car {
//! color: String,
//! price: u32,
//! }
//! let ford = Car {
//! color: String::from("black"),
//! price: 42_000,
//! };
//! // 👇 This is the `DocumentId` which will allow you to edit the Document later
//! let ford_id = collection.upsert(ford);
//! # }
//! ```
// TODO(Ronan) Expand Doc with more advanced use cases
extern crate ext_trait;
extern crate ffi_sdk;
/// Internal utility functions / macros
/// Provides access to authentication information and methods for logging on to Ditto Cloud.
/// Relevant when using an [`OnlineWithAuthentication`](identity::OnlineWithAuthentication)
/// identity.
pub