< Rebol Programming  
        
      USAGE:
WRITE-IO port buffer length
DESCRIPTION:
Low level write to a port.
WRITE-IO is a native value.
ARGUMENTS
- port -- Already opened port to write to (Type: port)
 - buffer -- Buffer to use for write. (Type: any-string)
 - length -- Maximum number of chars to write (Type: number)
 
SOURCE CODE
write-io: native[
    "Low level write to a port." 
    port [port!] "Already opened port to write to" 
    buffer [any-string!] "Buffer to use for write." 
    length [number!] "Maximum number of chars to write"
]
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