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import {_isArray} from './_internals/_isArray'import {equals} from './equals'
export function dropRepeats(list) {  if (!_isArray(list)) {    throw new Error(`${list} is not a list`)  }
  const toReturn = []
  list.reduce((prev, current) => {    if (!equals(prev, current)) {      toReturn.push(current)    }
    return current  }, undefined)
  return toReturn}