rebase 0.1.6

Rebase is a library for witnessing cryptographic attestations and issuing verifiable credentials
Documentation 
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use crate::types::{
    defs::Subject,
    enums::{
        attestation::{Attestation, AttestationTypes},
        subject::Subjects,
    },
    error::StatementError,
};
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use serde_json::{Map, Value};
use tsify::Tsify;
use wasm_bindgen::prelude::*;

#[derive(Clone, Debug, Deserialize, JsonSchema, Serialize, Tsify)]
#[tsify(into_wasm_abi, from_wasm_abi)]
pub struct BasicPostAttestationStatement {
    pub subject: Subjects,
    pub body: String,
    pub title: String,
    pub reply_to: Option<String>,
}

impl Attestation for BasicPostAttestationStatement {
    fn to_statement(&self) -> Result<(AttestationTypes, Map<String, Value>), StatementError> {
        let mut m = Map::new();
        m.insert(
            "id".to_string(),
            self.subject
                .did()
                .map_err(|e| StatementError::Statement(e.to_string()))?
                .into(),
        );
        m.insert("body".to_string(), self.body.clone().into());
        m.insert("title".to_string(), self.title.clone().into());

        if let Some(x) = self.reply_to.clone() {
            m.insert("reply_to".to_string(), x.into());
        }

        Ok((AttestationTypes::BasicPostAttestation, m))
    }
}