getMentionable method
Returns an value if the command has the designed option
Example :
dynamic mentionable = interaction.getMentionable('option_name');
Implementation
dynamic getMentionable (String optionName) {
  return params[optionName];
}Returns an value if the command has the designed option
Example :
dynamic mentionable = interaction.getMentionable('option_name');
dynamic getMentionable (String optionName) {
  return params[optionName];
}