hide fit from suggestions (#119568)

Co-authored-by: Kibana Machine <[email protected]>

src/plugins/vis_types/timelion/common/types.ts

@@ -20,6 +20,7 @@ export interface TimelionFunctionArgs {
   multi?: boolean;
   types: TimelionFunctionArgsTypes[];
   suggestions?: TimelionFunctionArgsSuggestion[];
+  hidden?: boolean;
 }
 
 export interface ITimelionFunction {

src/plugins/vis_types/timelion/public/components/timelion_expression_input_helpers.ts

@@ -42,7 +42,7 @@ function getArgumentsHelp(
 
   // ignore arguments that are already provided in function declaration
   const functionArgNames = functionArgs.map((arg) => arg.name);
-  return argsHelp.filter((arg) => !functionArgNames.includes(arg.name));
+  return argsHelp.filter((arg) => !arg.hidden && !functionArgNames.includes(arg.name));
 }
 
 async function extractSuggestionsFromParsedResult(

src/plugins/vis_types/timelion/server/lib/classes/datasource.js

@@ -47,6 +47,7 @@ export default class Datasource extends TimelionFunction {
           fitFunctions: _.keys(fitFunctions).join(', '),
         },
       }),
+      hidden: Boolean(config.hideFitArg),
     });
 
     // Wrap the original function so we can modify inputs/outputs with offset & fit

src/plugins/vis_types/timelion/server/series_functions/es/index.js

@@ -13,6 +13,7 @@ import buildRequest from './lib/build_request';
 import toSeriesList from './lib/agg_response_to_series_list';
 
 export default new Datasource('es', {
+  hideFitArg: true,
   args: [
     {
       name: 'q',