code: def shift_operator(
      x: Continuous, *, dx: object, params=None
  ) -> Continuous:
      r"""Shifts the field by `dx` using function composition.
  
      Args:
        x: The field to shift
        dx: The shift to apply
  
      Returns:
        A new field corresponding to the shifted input field.
      """
      get_x = x.get_fun
  
      def fun(p, coord):
          return get_x(p, coord + dx)
  
      return Continuous(x.params, x.domain, fun)
  
imports: from typing import List
  import numpy
  from jax import numpy
  from jaxdf.conv import reflection_conv
  from jaxdf.core import operator
  from jaxdf.discretization import Continuous, FiniteDifferences, FourierSeries, OnGrid
  from jaxdf.operators.differential import get_fd_coefficients
label_desc: Use image node_id 10 for calling a global function with example usage: shift_operator(x) and returns: Continuous, get_x