Function s3handler::blocking::aws::aws_v4_get_string_to_signed

pub fn aws_v4_get_string_to_signed(
    http_method: &str, 
    uri: &str, 
    query_strings: &mut Vec<(&str, &str)>, 
    headers: &mut Vec<(&str, &str)>, 
    payload: &Vec<u8>, 
    time_str: String, 
    region: &str, 
    iam: bool
) -> String