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: &[u8],
    time_str: String,
    region: &str,
    iam: bool
) -> String