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{
"name": "m",
"type": "function",
"groups": ["GeometryGroup"],
"description": "Returns the m value of a point geometry.",
"arguments": [{
"arg": "geometry",
"description": "a point geometry"
}],
"examples": [{
"expression": "m( geom_from_wkt( 'POINTM(2 5 4)' ) )",
"returns": "4"
}],
"tags": ["point"]
}