code: def _numpy_eye(n):
      """numpy version of complex eye."""
      if not np:
          raise ImportError
      return np.array(np.eye(n, dtype="complex"))
  
imports: from sympy.core.expr import Expr
  from sympy.core.numbers import I
  from sympy.core.singleton import S
  from sympy.matrices.matrixbase import MatrixBase
  from sympy.matrices import eye, zeros
  from sympy.external import import_module
label_desc: Use image node_id 14 for calling a global function with example usage: _numpy_eye(n) and returns: np