Load a :code:`Feature` object into memory.

def consume_feature(self, feature):
        """Load a :code:`Feature` object into memory."""
        if not isinstance(feature, tag.feature.Feature):
            raise ValueError('expected Feature object')
        self[feature.seqid][feature.start:feature.end] = feature
        if feature.seqid not in self.inferred_regions:
            self.inferred_regions[feature.seqid] = feature._range.copy()
        newrange = self.inferred_regions[feature.seqid].merge(feature._range)
        self.inferred_regions[feature.seqid].start = newrange.start
        self.inferred_regions[feature.seqid].end = newrange.end