code: def matrix_zeros(m, n, **options):
      """ "Get a zeros matrix for a given format."""
      format = options.get("format", "sympy")
      if format == "sympy":
          return zeros(m, n)
      elif format == "numpy":
          return _numpy_zeros(m, n, **options)
      elif format == "scipy.sparse":
          return _scipy_sparse_zeros(m, n, **options)
      raise NotImplementedError("Invaild format: %r" % format)
  
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 19 for calling a global function with example usage: matrix_zeros(m, n) and returns: zeros, _numpy_zeros, _scipy_sparse_zeros