title: Calling stored procedure with custom type using Ruby OCI8
body: <p>Given (Using Oracle 11g and ruby-oci8 (2.1.6)):</p>
  
  <pre><code>CREATE OR REPLACE TYPE MOVIE.LISTING_TYPE AS OBJECT
  (
   NAME VARCHAR2(255),
   DIRECTOR VARCHAR2(255),
   RELEASEDATE DATE,
   REVENUE NUMBER);
  
  
  PROCEDURE CREATE_MOVIE_LISTING (
       p_listing      IN              LISTING_TYPE,
       p_id       OUT              NUMBER,
       p_review_text   IN              CLOB)
  </code></pre>
  
  <p>Is it possible to call this stored procedure using ruby-oci8?  How would one bind a hash as the custom datatype?</p>