n>)

<span class='fu'>MGPMPosn</span>(<span class='no'>s</span>, <span class='kw'>ctx</span> <span class='kw'>=</span> <span class='kw'>NULL</span>)

<span class='fu'>MGPMPosl</span>(<span class='no'>s</span>, <span class='kw'>ctx</span> <span class='kw'>=</span> <span class='kw'>NULL</span>)

<span class='fu'>MGPMPosr</span>(<span class='no'>s</span>, <span class='kw'>ctx</span> <span class='kw'>=</span> <span class='kw'>NULL</span>)

<span class='fu'>MGPMPosm</span>(<span class='no'>s</span>, <span class=