{
  "name": "rtrim",
  "type": "function",
  "groups": ["String"],
  "description": "Removes the longest string containing only the specified characters (a space by default) from the end of string.",
  "arguments": [{
    "arg": "string",
    "description": "string to trim"
  },
  {
    "arg": "characters",
    "description": "characters to trim",
    "optional": true,
    "default": "' '"
  }],
  "examples": [{
    "expression": "rtrim('   hello world  ')",
    "returns": "'   hello world'"
  },
  {
    "expression": "rtrim('testxxzx', 'xyz')",
    "returns": "'test'"
  }],
  "tags": ["removes", "whitespace", "spaces", "tabs", "trailing"]
}