code: def parcel_profile_with_lcl(pressure, temperature, dewpt):
      r
      p_l, p_lcl, p_u, t_l, t_lcl, t_u = _parcel_profile_helper(pressure, temperature[0],
                                                                dewpt[0])
      new_press = concatenate((p_l, p_lcl, p_u))
      prof_temp = concatenate((t_l, t_lcl, t_u))
      new_temp = _insert_lcl_level(pressure, temperature, p_lcl)
      new_dewp = _insert_lcl_level(pressure, dewpt, p_lcl)
      return new_press, new_temp, new_dewp, prof_temp
docs: r"""Calculate the profile a parcel takes through the atmosphere.
  
      The parcel starts at `temperature`, and `dewpt`, lifted up
      dry adiabatically to the LCL, and then moist adiabatically from there.
      `pressure` specifies the pressure levels for the profile. This function returns
      a profile that includes the LCL.
  
      Parameters
      ----------
      pressure : `pint.Quantity`
          The atmospheric pressure level(s) of interest. The first entry should be the starting
          point pressure.
      temperature : `pint.Quantity`
          The atmospheric temperature at the levels in `pressure`. The first entry should be the
          starting point temperature.
      dewpt : `pint.Quantity`
          The atmospheric dew point at the levels in `pressure`. The first entry should be the
          starting dew point.
  
      Returns
      -------
      pressure : `pint.Quantity`
          The parcel profile pressures, which includes the specified levels and the LCL
      ambient_temperature : `pint.Quantity`
          The atmospheric temperature values, including the value interpolated to the LCL level
      ambient_dew_point : `pint.Quantity`
          The atmospheric dew point values, including the value interpolated to the LCL level
      profile_temperature : `pint.Quantity`
          The parcel profile temperatures at all of the levels in the returned pressures array,
          including the LCL.
  
      See Also
      --------
      lcl, moist_lapse, dry_lapse, parcel_profile