Download data at the municipality level
`municipios()` downloads, formats and imports to the environment the electoral results data of the selected election at the municipality level.
The type of choice you want to download. The accepted values are "congreso", "senado", "europeas" o "municipales".
The year of the election in YYYY format.
The month of the election in MM format.
Should district level results be returned when available? The default is FALSE. Please be aware when summarizing the data that districts = TRUE will return separate rows for the total municipal level and for each of the districts.