class_docstr: performs forward and inverse geodetic, or Great Circle,
  computations.  The forward computation (using the 'fwd' method)
  involves determining latitude, longitude and back azimuth of a
  terminus point given the latitude and longitude of an initial
  point, plus azimuth and distance. The inverse computation (using
  the 'inv' method) involves determining the forward and back
  azimuths and distance given the latitudes and longitudes of an
  initial and terminus point.
  
  Attributes
  ----------
  initstring: str
      The string form of the user input used to create the Geod.
  sphere: bool
      If True, it is a sphere.
  a: float
      The ellipsoid equatorial radius, or semi-major axis.
  b: float
      The ellipsoid polar radius, or semi-minor axis.
  es: float
      The 'eccentricity' of the ellipse, squared (1-b2/a2).
  f: float
      The ellipsoid 'flattening' parameter ( (a-b)/a ).
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docstr: Forward transformation
  
  Determine longitudes, latitudes and back azimuths of terminus
  points given longitudes and latitudes of initial points,
  plus forward azimuths and distances.
  
  .. versionadded:: 3.5.0 inplace
  .. versionadded:: 3.5.0 return_back_azimuth
  
  Accepted numeric scalar or array:
  
  - :class:`int`
  - :class:`float`
  - :class:`numpy.floating`
  - :class:`numpy.integer`
  - :class:`list`
  - :class:`tuple`
  - :class:`array.array`
  - :class:`numpy.ndarray`
  - :class:`xarray.DataArray`
  - :class:`pandas.Series`
  
  Parameters
  ----------
  lons: scalar or array
      Longitude(s) of initial point(s)
  lats: scalar or array
      Latitude(s) of initial point(s)
  az: scalar or array
      Forward azimuth(s)
  dist: scalar or array
      Distance(s) between initial and terminus point(s)
      in meters
  radians: bool, default=False
      If True, the input data is assumed to be in radians.
      Otherwise, the data is assumed to be in degrees.
  inplace: bool, default=False
      If True, will attempt to write the results to the input array
      instead of returning a new array. This will fail if the input
      is not an array in C order with the double data type.
  return_back_azimuth: bool, default=True
      If True, the third return value will be the back azimuth,
      Otherwise, it will be the forward azimuth.
  
  Returns
  -------
  scalar or array:
      Longitude(s) of terminus point(s)
  scalar or array:
      Latitude(s) of terminus point(s)
  scalar or array:
      Back azimuth(s) or Forward azimuth(s)
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code: def fwd(  # pylint: disable=invalid-name
      self,
      lons: Any,
      lats: Any,
      az: Any,
      dist: Any,
      radians: bool = False,
      inplace: bool = False,
      return_back_azimuth: bool = True,
  ) -> tuple[Any, Any, Any]:
      """
      Forward transformation
  
      Determine longitudes, latitudes and back azimuths of terminus
      points given longitudes and latitudes of initial points,
      plus forward azimuths and distances.
  
      .. versionadded:: 3.5.0 inplace
      .. versionadded:: 3.5.0 return_back_azimuth
  
      Accepted numeric scalar or array:
  
      - :class:`int`
      - :class:`float`
      - :class:`numpy.floating`
      - :class:`numpy.integer`
      - :class:`list`
      - :class:`tuple`
      - :class:`array.array`
      - :class:`numpy.ndarray`
      - :class:`xarray.DataArray`
      - :class:`pandas.Series`
  
      Parameters
      ----------
      lons: scalar or array
          Longitude(s) of initial point(s)
      lats: scalar or array
          Latitude(s) of initial point(s)
      az: scalar or array
          Forward azimuth(s)
      dist: scalar or array
          Distance(s) between initial and terminus point(s)
          in meters
      radians: bool, default=False
          If True, the input data is assumed to be in radians.
          Otherwise, the data is assumed to be in degrees.
      inplace: bool, default=False
          If True, will attempt to write the results to the input array
          instead of returning a new array. This will fail if the input
          is not an array in C order with the double data type.
      return_back_azimuth: bool, default=True
          If True, the third return value will be the back azimuth,
          Otherwise, it will be the forward azimuth.
  
      Returns
      -------
      scalar or array:
          Longitude(s) of terminus point(s)
      scalar or array:
          Latitude(s) of terminus point(s)
      scalar or array:
          Back azimuth(s) or Forward azimuth(s)
      """
      try:
          # Fast-path for scalar input, will raise if invalid types are input
          # and we can fallback below
          return self._fwd_point(
              lons,
              lats,
              az,
              dist,
              radians=radians,
              return_back_azimuth=return_back_azimuth,
          )
      except TypeError:
          pass
  
      # process inputs, making copies that support buffer API.
      inx, x_data_type = _copytobuffer(lons, inplace=inplace)
      iny, y_data_type = _copytobuffer(lats, inplace=inplace)
      inz, z_data_type = _copytobuffer(az, inplace=inplace)
      ind = _copytobuffer(dist, inplace=inplace)[0]
      self._fwd(
          inx,
          iny,
          inz,
          ind,
          radians=radians,
          return_back_azimuth=return_back_azimuth,
      )
      # if inputs were lists, tuples or floats, convert back.
      outx = _convertback(x_data_type, inx)
      outy = _convertback(y_data_type, iny)
      outz = _convertback(z_data_type, inz)
      return outx, outy, outz
  
imports: import math
  import warnings
  from typing import Any
  from pyproj._geod import Geod
  from pyproj._geod import GeodIntermediateReturn, geodesic_version_str
  from pyproj._geod import reverse_azimuth
  from pyproj.enums import GeodIntermediateFlag
  from pyproj.exceptions import GeodError
  from pyproj.list import get_ellps_map
  from pyproj.utils import DataType, _convertback, _copytobuffer
label_desc: Use image node_id 2 for calling the Geod obj's underlying member method code with example usage: obj.fwd(lons, lats, az, dist, radians, inplace, return_back_azimuth) and returns: outx,  outy,  outz, self