human
Solve the following python programming problem given the following code:
def _ImageHeaderFactory(stream) : 
    '
    Return a |BaseImageHeader| subclass instance that knows how to parse the
    headers of the image in *stream*.
    ' 
    from docx.image import SIGNATURES 
    def read_32(stream) : 
        stream.seek (0) 
        return stream.read (32) 
header = read_32 (stream) 
    for (cls, offset, signature_bytes) in SIGNATURES : 
        end = (offset + len (signature_bytes)) 
        found_bytes = header [offset : end] 
        if (header == signature_bytes) : 
            return cls.from_stream (stream) 
raise UnrecognizedImageError 

    
    

    Fix the buggy line: if (header == signature_bytes) :
assistant
#Here is Python code to fix the buggy line: if (header == signature_bytes) :
.

if (found_bytes == signature_bytes) :