interface
Options used to construct an HttpParams instance.
interface HttpParamsOptions {
  fromString?: string
  fromObject?: {...}
  encoder?: HttpParameterCodec
}   | Property | Description | 
|---|---|
| fromString?: string | String representation of the HTTP parameters in URL-query-string format. Mutually exclusive with  | 
| fromObject?: {
    [param: string]: string | number | boolean | ReadonlyArray<string | number | boolean>;
} | Object map of the HTTP parameters. Mutually exclusive with  | 
| encoder?: HttpParameterCodec | Encoding codec used to parse and serialize the parameters. | 
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Licensed under the Creative Commons Attribution License 4.0.
    https://angular.io/api/common/http/HttpParamsOptions