question: sets the preamble . concode_field_sep List bodyParts concode_elem_sep String subType concode_elem_sep String epilogue concode_elem_sep String preamble concode_elem_sep Entity parent concode_field_sep Entity getParent concode_elem_sep String getPreamble concode_elem_sep String getBoundary concode_elem_sep void setSubType concode_elem_sep void setBodyParts concode_elem_sep String getSubType concode_elem_sep List getBodyParts concode_elem_sep String getCharset concode_elem_sep void setEpilogue concode_elem_sep String getEpilogue concode_elem_sep void writeTo concode_elem_sep void setParent concode_elem_sep void addBodyPart
target: void function ( String arg0 ) { this . preamble = arg0 ; }