code: def test_binary_copy(self):
      embedding = np.array([1.5, 2, 3])
      cur = conn.cursor()
      with cur.copy(
          "COPY items (embedding) FROM STDIN WITH (FORMAT BINARY)"
      ) as copy:
          copy.write_row([embedding])
  
file_path: pgvector-python/tests/test_psycopg.py
imports: import numpy
  from pgvector.psycopg import register_vector, register_vector_async
  import psycopg
  import pytest
label_desc: Use image node_id 9 for calling the TestPsycopg obj's underlying member method code with example usage: obj.test_binary_copy() without return types