Signature of method ‘loss.forward()’ does not match signature of base method in class ‘Function’ less… (⌘F1)

Inspection info: This inspection detects inconsistencies in overriding method signatures.

class loss(Function):

```
def forward(x,INPUT):
batch_size = x.shape[0]
X = x.numpy()
input = INPUT.numpy()
Loss = 0
for i in range(batch_size):
R_r = input[i,0:4]
R_i = input[i,4:8]
H_r = input[i,8:12]
H_i = input[i,12:16]
R = np.concatenate((R_r, R_i), axis=1)
H = np.concatenate((H_r, H_i), axis=1)
T_r = input[i,16:32]
T_i = input[i,32:48]
temp_t1 = np.concatenate((T_r,T_i),axis=1)
temp_t2 = np.concatenate((-T_i,T_r),axis=1)
T = np.concatenate((temp_t1,temp_t2),axis=0)
phi_r = np.diagonal(X[i,0:4])
phi_i = 1 - np.power(phi_r,2)
temp_phi1 = np.concatenate((phi_r,phi_i),axis=1)
temp_phi2 = np.concatenate((-phi_i, phi_r), axis=1)
phi = np.concatenate((temp_phi1,temp_phi2),axis=0)
temp1 = np.matmul(R,phi)
temp2 = np.matmul(temp1,T)
H_hat = H + temp2
Q_r = np.zeros((4,4))
Q_r[np.triu_indices(4,1)] = X[i,4:10]
Q_r = Q_r + Q_r.T
row,col = np.diag_indices(4)
Q_r[row,col] = X[i,10:14]
Q_i = np.zeros((4,4))
Q_i[np.triu_indices(4,1)] = X[i,14:20]
Q_i = Q_i - Q_i.T
temp_Q1 = np.concatenate((Q_r,Q_i),axis=1)
temp_Q2 = np.concatenate((-Q_i,Q_r),axis=1)
Q = np.concatenate((temp_Q1,temp_Q2),axis=0)
H_hat_r = H_hat[0:4]
H_hat_i = H_hat[4:8]
temp_H1 = np.concatenate((-H_hat_i.T,H_hat_r.T),axis=0)
H_hat_H = np.concatenate((H_hat.T,temp_H1),axis=1)
temp_result1 = np.matmul(H_hat,Q)
temp_result2 = np.matmul(temp_result1,H_hat_H)
Loss += np.linalg.det(1+temp_result2)
Loss = t.from_numpy(Loss / batch_size)
return Loss
def backward(grad_output):
return grad_output
```