Version: NextconvertFreqMHzToSettingWCS CallableconvertFreqMHzToSettingWCS(spectralFrame: any, spectralType: SpectralType | null, spectralUnit: SpectralUnit | null, spectralSystem: SpectralSystem | null, value: number): number | undefinedParametersspectralFrame: anyspectralType: SpectralType | nullspectralUnit: SpectralUnit | nullspectralSystem: SpectralSystem | nullvalue: numberReturns number | undefined