yf-options 0.2.1

A fast, reliable command-line tool for downloading options chain data from Yahoo Finance. Features include Black-Scholes Greeks calculation (Delta, Gamma, Theta, Vega, Rho), filtering by expiration date, strike range, and ITM/OTM status. Supports multiple symbols with combined output, JSON/CSV export formats, and built-in rate limiting. Ideal for options analysis, volatility screening, and quantitative trading workflows.
Documentation 
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//! yf-options: Yahoo Finance options chain fetcher with Greeks
//!
//! Uses yf-common for shared infrastructure (auth, rate limiting, output).

pub mod cli;
pub mod client;
pub mod error;
pub mod greeks;
pub mod models;
pub mod output;

pub use client::OptionsClient;
pub use error::{YfOptionsError, Result};
pub use models::*;
pub use greeks::calculate_greeks;

// Re-export useful yf-common types
pub use yf_common::{CrumbAuth, AuthProvider};