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}

sub granularities { qw( daily weekly monthly ) }

sub url_maker {
  my($self, %parms) = @_;
  my $target_mode = $parms{target_mode} || $self->target_mode;
  my $parse_mode = $parms{parse_mode} || $self->parse_mode;

  # *always* block unknown target mode and parse mode combinations for
  # cascade to work properly!
  return undef unless $target_mode eq 'quote' ||
                      $target_mode eq 'split' ||
                      $target_mode eq 'dividend';

  $parse_mode = "json";

  my $granularity = lc($parms{granularity} || $self->granularity);
  my $grain = 'd';
  $granularity =~ /^\s*(\w)/;
  $grain = $1 if $1 eq 'w' || $1 eq 'm';