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1;

=head1 NAME

Bio::DB::Bam::Pileup -- Object passed to pileup() callback

=head1 SYNOPSIS

See L<Bio::DB::Sam/The generic fetch() and pileup() methods> for how
this object is passed to pileup callbacks.

=head1 DESCRIPTION

A Bio::DB::Bam::Pileup object (or a Bio::DB::Bam::PileupWrapper
object) is passed to the callback passed to the Bio::DB::Sam->pileup()
method for each column in a sequence alignment. The only difference
between the two is that the latter returns the more convenient
Bio::DB::Bam::AlignWrapper objects in response to the alignment()
method, at the cost of some performance loss.