docs: def PROFILE_SDVOIGT(sg0,GamD,Gam0,Gam2,Shift0,Shift2,sg):
      """
      # Speed dependent Voigt profile based on HTP.
      # Input parameters:
      #      sg0     : Unperturbed line position in cm-1 (Input).
      #      GamD    : Doppler HWHM in cm-1 (Input)
      #      Gam0    : Speed-averaged line-width in cm-1 (Input).       
      #      Gam2    : Speed dependence of the line-width in cm-1 (Input).
      #      Shift0  : Speed-averaged line-shift in cm-1 (Input).
      #      Shift2  : Speed dependence of the line-shift in cm-1 (Input)       
      #      sg      : Current WaveNumber of the Computation in cm-1 (Input).
      """
      return pcqsdhc(sg0,GamD,Gam0,Gam2,Shift0,Shift2,cZero,cZero,sg)