I need to read file from an in-memory blob, and there is a method named 'imread_from_blob' in the source code.
def imread_from_blob(blob, formatstr, as_grey=False, return_metadata=False):
'''
imdata = imread_from_blob(blob, formatstr, as_grey=False, return_metadata={True})
imdata,metadata = imread_from_blob(blob, formatstr, as_grey={False}, return_metadata=True)
Read an image into a ndarray from an in-memory blob.
But this method was not memtioned in the API document.