code: def _scipy_sparse_eye(n):
      """scipy.sparse version of complex eye."""
      if not sparse:
          raise ImportError
      return sparse.eye(n, 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 15 for calling a global function with example usage: _scipy_sparse_eye(n) and returns: sparse