tsl: (required, list) Time series list. Default: NULL
lowercase: (optional, logical) If TRUE, all names are coerced to lowercase. Default: FALSE
separator: (optional, character string) Separator when replacing spaces and dots. Also used to separate suffix and prefix from the main word. Default: "_".
capitalize_first: (optional, logical) Indicates whether to capitalize the first letter of each name Default: FALSE.
capitalize_all: (optional, logical) Indicates whether to capitalize all letters of each name Default: FALSE.
length: (optional, integer) Minimum length of abbreviated names. Names are abbreviated via abbreviate(). Default: NULL.
suffix: (optional, character string) Suffix for the clean names. Default: NULL.
prefix: (optional, character string) Prefix for the clean names. Default: NULL.