code: def forward(self, x: np.ndarray) -> np.ndarray:
      Z = np.matmul(x, self.W)
      z1, z2 = np.split(Z, 2, axis=1)
      return z1 * gelu(z2)
  
file_path: fused-gelu-testing/src/numpy_reference.py
imports: import torch
  import numpy
  import triton
label_desc: Use image node_id 2 for calling the NumpyNN obj's underlying member method code with example usage: obj.forward(x) and returns: unknown