@classmethod<EOL><INDENT>def from_fits_with_scale(cls, file_path, hdu, pixel_scale):<DEDENT>
return cls(array=array_util.numpy_array_2d_from_fits(file_path, hdu), pixel_scale=pixel_scale)<EOL>
Loads the PSF from a .fits file.

Parameters
----------
pixel_scale
file_path: String
    The path to the file containing the PSF
hdu : int
    The HDU the PSF is stored in the .fits file.