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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def char(self):
 """ Read one character from the stream or queue if available. Return EOF when EOF is reached. """

        # Read a new chunk from the input stream if necessary
        if self.chunkOffset >= self.chunkSize:
            if not self.readChunk():
                return EOF

        chunkOffset = self.chunkOffset
        char = self.chunk[chunkOffset]
        self.chunkOffset = chunkOffset + 1

        return char