code: def _f_ieqcons(x_full, k_params):
      """
      The inequality constraints.
      """
      x_params = x_full[:k_params]
      x_added = x_full[k_params:]
      # All entries in this vector must be \geq 0 in a feasible solution
      return np.append(x_params + x_added, x_added - x_params)
  
file_path: statsmodels/statsmodels/base/l1_slsqp.py
imports: import numpy
  from scipy.optimize import fmin_slsqp
  import statsmodels.base.l1_solvers_common
label_desc: Use image node_id 5 for calling a global function with example usage: _f_ieqcons(x_full, k_params) and returns: np