Extract rust snippets and reference them

snippets/rust/src/getting_started.rs

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+use anyhow::Result;
+use bip39::{Language, Mnemonic};
+use breez_sdk_core::*;
+use std::sync::Arc;
+
+use crate::AppEventListener;
+
+async fn getting_started() -> Result<Arc<BreezServices>> {
+    let mnemonic = Mnemonic::generate_in(Language::English, 12)?;
+    let seed = mnemonic.to_seed("");
+    let invite_code = Some("<invite code>".into());
+    let api_key = "<api key>".into();
+
+    // Create the default config
+    let mut config = BreezServices::default_config(
+        EnvironmentType::Production,
+        api_key,
+        breez_sdk_core::NodeConfig::Greenlight {
+            config: GreenlightNodeConfig {
+                partner_credentials: None,
+                invite_code
+            },
+        },
+    );
+
+    // Customize the config object according to your needs
+    config.working_dir = "path to an existing directory".into();
+
+    // Connect to the Breez SDK make it ready for use
+    let sdk = BreezServices::connect(
+        config,
+        seed.to_vec(),
+        Box::new(AppEventListener {}),
+    )
+    .await?;
+
+    Ok(sdk)
+}
+
+async fn getting_started_node_info(sdk: Arc<BreezServices>) -> Result<()> {
+    if let Some(node_state) = sdk.node_info()? {
+        let balance_ln = node_state.channels_balance_msat;
+        let balance_onchain = node_state.onchain_balance_msat;
+    }
+
+    Ok(())
+}