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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 fetch_starting_at_coord(self,coord):
 #b2 = BAMFile(self.path,blockStart=coord[0],innerStart=coord[1],index_obj=self.index,reference=self._reference) """starting at a certain coordinate was supposed to make output .. warning:: creates a new instance of a BAMFile object when maybe the one we had would have worked """

    b2 = BAMFile(self.path,BAMFile.Options(blockStart=coord[0],innerStart=coord[1],reference=self.reference))
    return b2