metagraph_def.ParseFromArray(metagraph->data, metagraph->length);
  TF_DeleteBuffer(metagraph);

  EXPECT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);
  CSession csession(session);

  // Retrieve the regression signature from meta graph def.
  const auto signature_def_map = metagraph_def.signature_def();
  const auto signature_def = signature_def_map.at("regress_x_to_y");

  const string input_name =

var v *T           // v has value nil, static type *T
x = 42             // x has value 42 and dynamic type int
x = v              // x has value (*T)(nil) and dynamic type *T
</pre>

<p>
A variable's value is retrieved by referring to the variable in an
<a href="#Expressions">expression</a>; it is the most recent value
<a href="#Assignment_statements">assigned</a> to the variable.

Additional Comment 1: "For key pairs generated for use with approved KEMs in // FIPS 203, the PCT shall consist of applying the encapsulation key ek to // encapsulate a shared secret K leading to ciphertext c, and then applying // decapsulation key dk to retrieve the same shared secret K. The PCT passes if // the two shared secret K values are equal. The PCT shall be performed either // when keys are generated/imported, prior to the first exportation, or prior to // the first operational use (if not exported...