code: def count_nonzero(
      a: JaxArray,
      /,
      *,
      axis: Optional[Union[int, Tuple[int, ...]]] = None,
      keepdims: bool = False,
      dtype: Optional[jnp.dtype] = None,
      out: Optional[JaxArray] = None,
  ) -> JaxArray:
      if isinstance(axis, list):
          axis = tuple(axis)
      if dtype is None:
          return jnp.count_nonzero(a, axis=axis, keepdims=keepdims)
      return jnp.array(
          jnp.count_nonzero(a, axis=axis, keepdims=keepdims),
          dtype=dtype,
      )
  
imports: import operator
  from typing import Optional, Union, Tuple, List, Sequence
  from numbers import Number
  from ivy import promote_types_of_inputs, default_float_dtype, is_float_dtype
  from ivy.func_wrapper import with_supported_dtypes
  from ivy.functional.backends.jax import JaxArray
  import jax.numpy
  import jax.scipy
  import jax.lax
  from ..None import backend_version
label_desc: Use image node_id 8 for calling a global function with example usage: count_nonzero() and returns: jnp, jnp