You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: auth.rs
    path of file: ./repos/hyperswitch/crates/router/src/connector/signifyd/transformers
    
    the code of the file until where you have to start completion: use error_stack;
use masking::Secret;

use crate::{core::errors, types};

pub struct SignifydAuthType {
    pub api_key: Secret<String>,
}

impl TryFrom<&types::ConnectorAuthType> for 
    
    fn try_from(auth_type: &types::ConnectorAuthType) -> Result<Self, Self::Error> {
        match auth_type {
            types::ConnectorAuthType::HeaderKey { api_key } => Ok(Self {
                api_key: api_key.to_owned(),
            }),
            _ => Err(errors::ConnectorError::FailedToObtainAuthType.into()),
        }
    }