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@abovelabelmargin bbconnect @belowlabelmargin blconnect @blocklw @blockpainter @blockspacefar @blockspacelabelspace @blockspacenear @blockspaceveryfar @blockspaceverynear bottompoint brconnect connect @connectionlw @connectpainter fracblock @fracblockry hhconnect hvconnect lbconnect leftpoint @leftrightlabelmargin llconnect longblock @longblockrx @longblockry longenoughblock longenoughfracblock lrconnect ltconnect putblockAbove putblockBelow putblockFarAbove putblockFarBelow putblockFarLeft putblockFarRight putblockLabelMarginAbove putblockLabelMarginBelow putblockLabelMarginLeft putblockLabelMarginRight putblockLabelSpaceAbove putblockLabelSpaceBelow putblockLabelSpaceLeft putblockLabelSpaceRight putblockLeft putblockNearAbove putblockNearBelow putblockNearLeft putblockNearRight putblockOrigin putblockRight putblockVeryFarAbove putblockVeryFarBelow putblockVeryFarLeft putblockVeryFarRight putblockVeryNearAbove putblockVeryNearBelow putblockVeryNearLeft putblockVeryNearRight putlabelAbove putlabelBelow putlabelLeft putlabelRight rbconnect rightpoint rlconnect roundblock rrconnect rtconnect @signmarginoffset @signmarginslide sizedblock @smallblockr splitdot squareblock sumpicture tbconnect tbconnect termcircle @textscaling tlconnect toppoint trconnect ttconnect vhconnect vvconnect

@bgArrowWidth bgconnect bondgraphArrow effortlabel flowlabel gyjunction hbond junction junctionlbl pjunction putblockTerminal sjunction tbond terminalfrom terminalto tfjunction ubond

The two extensions in this namespace serve rather different purposes, and coexist in the same namespace for historical reasons.