{
  "name": "to_dm",
  "type": "function",
  "description": "Convert a coordinate to degree, minute.",
  "arguments": [
    {"arg":"coordinate","description":"A latitude or longitude value."},
    {"arg":"axis","description":"The axis of the coordinate. Either 'x' or 'y'."},
    {"arg":"precision", "description":"Number of decimals."},
    {"arg":"formatting", "optional": true, "default":"", "description":"Designates the formatting type. Acceptable values are NULL, 'aligned' or 'suffix'."}
  ],
    "examples": [
       { "expression":"to_dm(6.3545681, 'x', 3)", "returns":"6°21.274′"},
       { "expression":"to_dm(6.3545681, 'y', 4, 'suffix')", "returns":"6°21.2741′N"}
  ]
}