static [UGroomAsset](API\Plugins\HairStrandsCore\UGroomAsset) * ImportHair ( const [FHairImportContext](API\Plugins\HairStrandsEditor\FHairImportContext) & ImportContext, [FHairDescription](API\Plugins\HairStrandsCore\FHairDescription) & HairDescription, [UGroomAsset](API\Plugins\HairStrandsCore\UGroomAsset) * ExistingHair )