code: public java.util.Map<java.lang.String, org.tensorflow.framework.SignatureDef> getSignatureDefMap() {
      return internalGetSignatureDef().getMap();
    }
docs: <pre>
  signature_def: Map from user supplied key for a signature to a single
  SignatureDef.
  </pre>
  
  <code>map&lt;string, .tensorflow.SignatureDef&gt; signature_def = 5;</code>